
 State of Jharkhand - Act
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 Jharkhand Minor Minerals (Evidence of Mineral Contents) Rules, 2018
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 JHARKHAND
   
 India
 
 Jharkhand Minor Minerals (Evidence of Mineral Contents) Rules, 2018
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 Rule JHARKHAND-MINOR-MINERALS-EVIDENCE-OF-MINERAL-CONTENTS-RULES-2018 of 2018
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* Published on 1 January 2018
* Commenced on 1 January 2018
 Jharkhand Minor Minerals (Evidence of Mineral Contents) Rules, 2018
 
 In exercise of the powers conferred by section 15 of the Mines and Minerals (Development and Regulation) Act, 1957 (67 of 1957) and in the light of Jharkhand Minor Mineral (Auction)  Rules, 2017, the Government of Jharkhand hereby makes the following rules, namely:-
 
### 1. Short title and commencement.
(1) These rules may be called the Jharkhand Minor Minerals (Evidence of Mineral Contents) Rules, 2018.
 
(2) It shall come into force on the date of its publication in the Official Gazette.
 
### 2. Application.
 - These rules shall extend to the whole State of Jharkhand and shall apply to minor minerals as specified in clause (e)  of section 3 of Mines and Minerals (Development and Regulation) Act, 1957 (67 of 1957) (Schedule-II).
 
 "minor minerals" means building stones, gravel, ordinary clay, ordinary sand other than sand used for prescribed purposes, and any other mineral which the Central Government may, be notification in the Official Gazette, declare to be a minor mineral.
 
### 3. Definitions and interpretation.
 - In these rules, unless the context otherwise requires,-
 
 a. "Act" means the Mines and Minerals (Development and Regulation) Act, 1957 (67 of 1957);
 
 b. "Evidence of mineral contents" means the existence of mineral contents established by the process of geological exploration according to the norms fixed in Schedule-1 of these Rules.
 
 c. "Threshold value of minerals" means the limits prescribed by the Indian Bureau of Mines or Government of Jharkhand from time to time based on the beneficiability and marketability of a mineral for a given region and for given time, below which the material obtained after mining can be discarded as waste;
 
 d. "Schedule" means the Schedule annexed to these rules;
 
 e. The expressions General Exploration (C2) & Detailed Exploration (C1), Feasibility Study (FS)  used in these rules shall have the meanings assigned to them in Part-1 of the Schedule-1.
 
 f. All other words and expressions used in these rules, but not defined, shall have the same meaning as assigned to them in the Act or the rules made there under.
 
### 4. Preparation of mineral blocks.
 - A mineral block may be defined as an area where there is evidence to show the existence of mineral contents in accordance with the parameters prescribed in Schedule-1. The Government may grant a mining lease composite license through Electronic Auction, in the manner specified in Jharkhand Minor Mineral (Auction)  Rules, 2017. Mineral Blocks should be prepared in defined geometrical shapes as far as possible.
 
### 5. Existence of mineral contents for grant of composite license.
(1) An area may be notified for auction to grant a composite license under chapter III of Jharkhand Minor Mineral (Auction) Rules, 2017 if, in respect of such area:-
 
(a) General Exploration (C2) has been completed to establish Inferred Mineral Resource.
 
(b) A geological report has been prepared conforming to Part-III A of the schedule.
 
### 6. Existence of mineral contents for grant of mining lease.
 - An area shall be considered for grant a mining lease under Chapter II of Jharkhand Minor Mineral (Auction)  Rules, 2017 if, in respect of such area:-
 
(a) Detailed Exploration (C1) has been completed to establish Indicated/Measured Mineral Resource.
 
(b) A geological report has been prepared conforming to Part-III A of Schedule-1.
 
### 7. Relaxation.
 - Depending upon the local geological setup, mode of occurrence and nature of mineralization, the Government (State Cabinet) may relax the exploration norms as specified in Part III of Schedule-1, in whole or in part for any mineral or any area.
 
 Schedule 1
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 Evidence of Mineral Contents
 
 Existence of mineral content will have to be established in an area for the purpose of auction of Mineral Block by carrying out exploration as per the suggested geological parameters and exploration norms given in Part-I, II and III of Schedule-I.
 
 Part-1 1. Definitions. - The exploration for any minor mineral deposit involves two stages namely, General Exploration (C2) and Detailed Exploration (C1). These stages of exploration lead to resource categories namely Inferred Mineral Resource and Indicated/Measured Mineral Resource respectively reflecting the degree of geological assurance.
 
### 2. General Exploration (C2). - involves the initial delineation of as identified deposit. Methods used include surface mapping, pitting/trenching/drilling. followed by sampling for evaluation of mineral quantity and quality (including mineralogical tests on laboratory scale if required), and limited interpolation based on indirect methods of investigation. The objective is to establish the main geological features of a deposit, giving a reasonable indication of continuity and providing an initial estimate of size, shape, structure and grade. ###
 3. Detailed Exploration (C1). - involves the detailed three-dimensional delineation of a known deposit achieved through sampling, such as from outcrops, pits, trenches, boreholes, shafts and tunnels etc. Sampling grids are closely spaced such that size, shape, structure, grade and other relevant characteristics of the deposit are established with a high degree of accuracy. Processing tests involving bulk sampling may be required.
### 4. Mineral Resource. - is a concentration or occurrence of solid material of economic interest in or on the earth's crust in such form, grade or quality and quantity that there are reasonable prospects for eventual economic extraction. The location, quantity, grade or quality, continuity and other geological characteristics of a Mineral Resource are known, estimated or interpreted from specific geological evidence and knowledge, including sampling. Mineral Resources are subdivided, in order of increasing geological confidence into Reconnaissance, Inferred, Indicated and Measured resource categories which are defined as follows:- (a) Inferred Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling achieved through a stage of preliminary exploration. As Inferred Resource has a lower level of confidence that that applying to an Indicated Mineral Resource and shall not be converted to a Mineral Reserve. The majority of Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration.
 
 (b) Indicated Mineral Resource is that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics are estimated with sufficient confidence to allow the application of Modifying Factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. Geological evidence is derived from adequately detailed and reliable exploration, sampling and testing and is sufficient to assume geological and grade or quality continuity between points of observation. An Indicated Mineral Resource has a lower level of confidence than that applying to a Measured Mineral Resource and may only be converted to a Probable Mineral Reserve.
 
 (c) Measured Mineral Resource is that part of a Mineral Resource for which quantity, grade or quality, densities, shape, and physical characteristics are estimated with confidence sufficient to allow the application of Modifying Factors to support detailed mine planning and final evaluation of the economic viability of the deposit. Geological evidence is derived from detailed and reliable exploration, sampling and testing and is sufficient to confirm geological and grade or quality continuity between points of observation. A Measured Mineral Resource has a higher level of confidence than that applying to either an Indicated Mineral Resource or an Inferred Mineral Resource. It may be converted to a Proved Mineral Reserve or to a Probable Mineral Reserve.
 
### 5. A Feasibility Study (FS)  is a detailed comprehensive economic study of the selected development option for a mineral project that includes appropriately detailed assessments of applicable Modifying Factors together with any other relevant operational factors and detailed financial analysis that are necessary to demonstrate at the time of reporting that extraction is reasonably justified (economically mineable). ###
 6. Feasibility Mineral Resource. - A Feasibility Mineral Resource is that part of Indicated/Measured Mineral Resource which is not economically mineable as, defined by studies at feasibility level. This material is identified as being possibly economically viable subject to changes in technological, economic, and environmental and/ or other relevant conditions.
### 7. Mineral Reserve is the economically mineable part of a Measured and Indicated Mineral Resource. It includes diluting materials and allowances for losses, which may occur when the material is mined or extracted and is defined by studies at Feasibility level as appropriate that include application of Modifying Factors which are factors those are taken into consideration while conducting a Pre-feasibility or feasibility study so as to convert Mineral Resources to Mineral Reserves. These include, but are not restricted to, mining, processing, end use, cut-off grade, threshold value, metallurgical, infrastructure, economic, marketing, legal, environmental, social and governmental factors, Mineral reserve may further be categorized as:- (a) Probable Mineral Reserve is the economically mineable part of an Indicated, and in some circumstances, a Measured Mineral Resource. The confidence in the Modifying Factors applying to a Probable Mineral Reserve is lower than that applying to a Proved Mineral Reserve.
 
 (b) Proved Mineral Reserve is the economically mineable part of a Measured Mineral Resource. A Proved Mineral Reserve implies a high degree of confidence in the Modifying Factors.
 
 Part-II Geological Parameters and Exploration Norms
 
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 1.
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 Aerial reconnaissance:Satellite
 
 imagery/aerial photograph studies, as per necessity.
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 2.
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 Topographic & Geological survey
 
 (Mapping) : General Exploration stage:1:50,000 to 1:4,000
 
 scale and Detailed Exploration stage larger than 1:4,000 to
 
 1:1,000 scale as per type of mineral deposit. Geological mapping
 
 during general and detailed exploration to be carried out with
 
 the help of Total Station, Theodolite and other Electronic Survey
 
 Instruments. Exploration block to be geo-coordinated with the
 
 help of DGPS/GPS.
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 3.
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 Ground Geophysical and Geochemical survey:Geophysical and geochemical survey using appropriate techniques,
 
 as may be necessary, for the style of mineralization as per
 
 requirement.
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 4.
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 Technology:-Exploration and sampling using appropriate techniques from
 
 locations such as outcrops, trenches, pits, old workings and
 
 drill holes. The sampling locations are spaced suitably (in a
 
 gride pattern to the extent possible and may be modified
 
 depending on structural complexity) for establishing existence of
 
 mineralized body and its lateral and vertical continuity.
 
 The lateral extension
 
 to be considered for resource assessment shall depend on
 
 geological considerations supplemented by geological continuity
 
 by mapping or by other means and in any case shall not be more
 
 than 50% of the grid spacing of the probe points.
 
 Assessment based on selected information such as
 
 isolated assays, isolated drill holes, assays of panned
 
 concentrates etc. is not recommended.
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 5.
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 Sampling & sub
 
 sampling:
 
 a. Random
 
 grab/chip/channel sampling from surface exposure/escarpments/nala
 
 cuttings/pit/channel etc.
 
 b. Systematic
 
 sampling from pits/trenches/outcrops/workings etc. spaced closely
 
 enough to confirm geological and grade continuity for other
 
 stages of geological assessment.
 
 c. Geological logging
 
 and sampling of drill core/chip samplex at regular interval,
 
 preferably metre wise or less for the mineralized portions.
 
 d. The drill
 
 technique to be deployed shall depend on the rock type to be
 
 penetrated and with an aim to achiever maximum sample/core
 
 recovery.
 
 e. The exploration samples including surface
 
 samples, drill core/chip samples shall be preserved for future
 
 use.
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 6.
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 Assay date & Laboratory tests:Analysis of all samples generated for major radicals appropriate
 
 to the mineral under investigation.
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 7.
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 Petrographic & Mineragraphic studies:Petrographic analysis of mineralized portions to ascertain the
 
 rock types and mineral assemblages including grain size, texture,
 
 gangue and its liberation characteristics etc. if considered
 
 necessary.
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 8.
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 Bulk density study:The bulk density must
 
 be measured by methods that adequately account for incipient void
 
 spaces (vugs, porosity etc.) in mineral/ore body.
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 9.
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 Bulk Sampling for Beneficiation studies:Bulk sampling, if necessary, for testing processing technology.
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 10.
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 Environmental setting:Details about
 
 local infrastructure, host population, historical sites, forests,
 
 sanctuaries, national park and base line information on
 
 environmental setting of the area to be collected.
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 11.
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 Any other relevant data:Groundwater,
 
 geotechnical and rock characteristics etc. that may be relevant.
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 Part III – Exploration Norms (category-wise) for different types of Minor Mineral Deposits/Mineralization
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 Category
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 Type of deposit & Principal Minerals
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 General Exploration (C-2)
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 Detailed Exploration (C-1)
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 A.
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 Building
 
 materials/Road materials/General stones
 
 Bedded Stratified and
 
 Tabular deposits of regular and irregular habit:
 
 Road Metal, Boulder, Murrum, Calcareous Sand,
 
 Diaspore, Laterite, Lime Kankar, Sand (others) , Quartzite and
 
 Sand Stone (for making road metal), ordinary earth (used or
 
 filling or leveling purposes in construction or embankments,
 
 roads, railways, building) Brickearth, Ordinary Earth Soft &
 
 Murrum, Felsite, Shale, Slate, Shingle, Chalcedony pebbles used
 
 for ball mill purpose only, Lime shell, Kankar and Limestone used
 
 in kilns for manufacture of lime used as building materials,
 
 Gneissic & schistose rocks, Aeid and Basic rock, Gabbro,
 
 Dolerite, Basalt, Norite etc. Phyllite, Quartzite, Sandstone,
 
 Slate, Boulder, Chalcedony Pebbles, Gravel, Ordinary Sand and
 
 Quartzite Pebbles, Trachyte, and Ordinary Clay.
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 1. Geological
 
 Survey:
 
 i Geological Mapping
 
 on 1:50,000 to 1:4,000 scale with boundary demarcation with GPS.
 
 ii. Broad assessment
 
 of lithology, structure, surface extension of mineral
 
 iii. Recording of
 
 broad geomorphology,
 
 2. Geochemical
 
 Survey; not necessary
 
 3. Ground geophysical
 
 survey; not necessary.
 
 4. Technology;
 
 i Pitting/Trenching
 
 As per requirement to proof mineralization in the area
 
 ii. Scout drilling;
 
 not necessary.
 
 iii. sampling;
 
 Regional and random grab/chip sample for geotechnical, specific
 
 gravity studies as per necessity.
 
 iv. Bulk
 
 density/specific gravity
 
 5. Integration of all date and identification of
 
 blocks for further exploration
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 1. Geological
 
 Survey:
 
 iv. Mapping on
 
 1:4,000 to 1:1,000 scale with boundary demarcation with GPS.
 
 v. Assessment of
 
 lithology, structure, surface extension of mineral
 
 vi. Recording of
 
 geomorphology drainage, weather profile.
 
 2. Geochemical
 
 Survey; not necessary
 
 3. Geophysical
 
 survey; not necessary
 
 4. Technology;
 
 i. Pitting/trenching;
 
 2 to 5 per sq km per prospect.
 
 ii. Drilling; not
 
 necessary.
 
 iii. Sampling
 
 systematic, grab chip, pit & trench sampling for geotechnical
 
 studies.
 
 iv. Geotechnical
 
 studies; measurement of compressive strength, tensile strength
 
 etc. if necessary
 
 v. Bulk
 
 density/specific gravity study.
 
 5. Petrographic and mineralogical studies as per
 
 requirement.
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 B.
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 Industrial
 
 minerals
 
 (i)  Bedded
 
 Stratified and Tabular deposits of regular and irregular habit:
 
 Ball Clay, Red Clay Lithomargic Clay, Pozzolanic
 
 Clay, Natural Clay, Diatomaceous Clay, Bentonite, Chalk,
 
 Dolomite, Fireclay, Fuller's Earth, Gypsum, Quartzite, Molding
 
 Sand, Silica sand, Barytes, Chinaclay, Kaloin, Reh Matti, Ochre,
 
 Calc-Tuffa
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 1 Geological
 
 Survey:
 
 i Geological Mapping
 
 on 1:50,000 to 1:4,000 scale with boundary demarcation with GPS.
 
 ii. Broad assessment
 
 of lithology, structure, surface extension of mineral
 
 iii. Recording of
 
 broad geomorphology, drainage, weather profit
 
 2. Geochemical
 
 Survey; not necessary
 
 3 Ground geophysical
 
 survey; not necessary
 
 4 Technology:
 
 iv. Pitting Trenching
 
 As per requirement to proof mineralization in the area.
 
 v. Scout drilling not
 
 necessary.
 
 vi Sampling; Regional
 
 and random grab/chip sample for geotechnical, specific gravity
 
 studies as per necessity.
 
 vii. Bulk
 
 density/specific gravity
 
 5. Integration of all data and identification of
 
 blocks for further exploration.
  | 
 1 Geological
 
 Survey:
 
 i. Mapping on
 
 1:4,0000 to 1:1,000 scale with boundary demarcation with GPS.
 
 ii. Assessment of
 
 lithology, structure, mineralization extent.
 
 2. Geochemical
 
 Survey: Not Necessary
 
 3. Geophysical
 
 survey: Not Necessary.
 
 4. Technology:
 
 i. Pitting/Trenching
 
 2 to 5 per sq km or as per requirement
 
 ii. Drilling Core
 
 drilling on grid spacing of 400m or closer for deposits of
 
 regular habit and 200m or closer for irregular habit.
 
 iii. Sampling;
 
 systematic pit & trench sampling. Core/sludge sampling
 
 mineralization wise.
 
 iv. Chemical analysis
 
 of all samples.
 
 v. Bulk
 
 density/specific gravity study.
 
 1 Petrographic and mineralogical studies as per
 
 requirement.
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 | 
 ii. Lenticular
 
 bodies of all dimensions including Bodies occurring on echelon,
 
 silicified linear zones of composite veins. Lenses, pockets,
 
 stockworks; irregular shaped modest to small sized bodies
 
 aGeneral Industrial MineralsCalcite,
 
 Clay (Others) , Feldspar, Ochre, Quartz, Steatite or Tale or
 
 Soapstone, China Clay, Kaolin and White Clay.
  | 
 1 Geological
 
 Survey:
 
 i. Geological Mapping
 
 on 1:50,000 to 1:4,000 scale with boundary demarcation with GPS.
 
 ii. Broad assessment
 
 of lithology, structure, surface extension of mineral.
 
 iii. Recording of
 
 broad geomorphology, drainage, weather profile
 
 2. Geochemical
 
 Survey; not necessary
 
 3. Ground geophysical
 
 survey: not necessary.
 
 4. Technology:
 
 i. Pitting/Trenching:
 
 As per requirement to proof mineralization in the area.
 
 ii. Scout drilling
 
 not necessary.
 
 iii. Sampling:
 
 Regional and random grab/chip sample for geotechnical, specific
 
 gravity studies as per necessity.
 
 iv. Bulk density
 
 specific gravity.
 
 5. Integration of all data and identification of
 
 blocks for further exploration.
  | 
 1 Geological
 
 Survey:
 
 i. Mapping on 1:4,000
 
 scale to 1:1,000 scale with boundary demarcation with GPS.
 
 ii. Assessment of
 
 lithology, structure, mineralization extent.
 
 2. Geochemical
 
 Survey: Not Necessary
 
 3. Geophysical
 
 survey; Not Necessary.
 
 4 Technology:
 
 i. Pitting/Trenching
 
 2 to 5 per sq km or as per requirement.
 
 ii. Drilling: Core
 
 drilling on grid spacing of 400m or closer for deposits of
 
 regular habit and 200m or closer for irregular habit.
 
 iii Sampling;
 
 systematic pit & trench sampling. Core/sludge sampling
 
 mineralization wise.
 
 iv Chemical analysis
 
 of all samples.
 
 iv. Bulk density
 
 specific gravity study.
 
 5. Petrographic and mineralogical studies as
 
 per requirement.
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 b. Precious & Semi Precious Stones,
 
 Pegmatite, Ultra basic rocks and MicaAgate, Corundum,
 
 Diaspore (gemvarities) , Dunite, Peridotite, Pyroxenite and Mica
 
 all varities.
  | 
 1. Geological
 
 Survey:
 
 i. Geological Mapping
 
 on 1:50,000 to 1:4,000 scale with boundary demarcation with GPS.
 
 ii. Broad assessment
 
 of lithology, structure, surface extension of mineral.
 
 iii. Recording of
 
 broad geomorphology, drainage, weather profile
 
 2. Geochemical
 
 Survey; not necessary
 
 3. Ground geophysical
 
 survey; not necessary.
 
 4. Technology:
 
 i. Pitting/Trenching;
 
 As per requirement to proof mineralization in the area
 
 ii. Scour drilling
 
 not necessary
 
 iii. Sampling
 
 Regional and random grab/chip sample for geotechnical, specific
 
 gravity studies as per necessity.
 
 iv. Bulk
 
 density/specific gravity.
 
 5. Integration of all date and identification of
 
 blocks for further exploration.
  | 
 1 Geological
 
 Survey:
 
 i. Mapping on 1:4,000
 
 scale to 1:1,000 scale with boundary demarcation with GPS.
 
 ii. Assessment of
 
 lithology, structure, mineralization extent.
 
 3. Geophysical
 
 survey; Non Necessary,
 
 4. Technology:
 
 i. Pitting/Trenching
 
 2 to 5 per sq km or as er requirement
 
 ii. Drilling; Not
 
 required
 
 iii. Sampling
 
 systematic pit & trench sampling
 
 iv. Chemical analysis
 
 of all samples
 
 v. Bulk density/
 
 specific gravity study.
 
 5. Petrographic, Gem Testing and mineralogical
 
 studies as per requirement.
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 C.
  | 
 Dimension and
 
 Decorative Stones
 
 Granite (Granite means dolerites, granite
 
 gneisses, migmatities, gabbros, anorthosites, rhyolites,
 
 syenites, leptynites, charnockites and any other igneous and
 
 ortho-metamorphic rock types) Marble (marble means crystaline
 
 metamorphosed calcareous or dolomitic rocks and serpentine rock
 
 types) BHJ, Fuschite Quartzite.
  | 
 1 Geological Survey:
 
 i. Geological Mapping
 
 on 1:50,000 to 1:4,000 scale with boundary demarcation with GPS.
 
 ii. Broad assessment
 
 of lithology, structure, surface extension of mineral
 
 iii. Recording of
 
 broad geomorphology, drainage, weather profile
 
 2. Geochemical
 
 Survey; not necessary
 
 3. Ground geophysical
 
 survey; not necessary.
 
 4. Technology;
 
 i. Pitting Trenching
 
 As per requirement to proof mineralization in the area.
 
 ii. Scout drilling;
 
 not necessary.
 
 iii. Sampling
 
 Regional and random grab/chip sample for geotechnical, specific
 
 gravity studies as per necessity.
 
 iv. Bulk
 
 density/specific gravity.
 
 5. Integration of all data and identification of
 
 blocks for further exploration.
  | 
 1. Geological Survey:
 
 i. Mapping on 1:4,000
 
 to 1:1,000 scale with boundary demarcation with GPS.
 
 ii Assessment of
 
 lithology, structure, mineralization extent.
 
 2. Geochemical
 
 Survey; Not Necessary
 
 3. Geophysical survey
 
 Non Necessary.
 
 4. Technology;
 
 i. Pitting/Trenching
 
 2 to 5 per sq km or as per requirement
 
 ii. Drilling; Not
 
 required.
 
 iii. Sampling 2 to 3
 
 grabs per prospect.
 
 iv. Geotechnical;
 
 Further refinement of blockability data, polishing index
 
 measurement, measurement of compressive strength, tensile
 
 strength etc.
 
 v. Bulk density/
 
 specific gravity study.
 
 5. Petrographic and mineralogical studies as per
 
 requirement.
  |
 Part - III A Reporting of Minor-Mineral Resources
 
 A Geological Study Report for estimation and reporting of Minor Mineral Resources may be prepared integrating all data of exploration (sampling and testing generated through aerial, geophysical, geochemical surveys and technological study) collected for assessing the resources as per the stage of exploration. The report may incorporate, among other things, the following contents:
 
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 Sl.
  | 
 Contents
  | 
 Explanation
  |
| 
 1
  | 
 Title & Ownership
  | 
 • Title of Report
 
 • Details of period of
 
 prospecting/mineral right if any
 
 • Details of exploration agency, qualification,
 
 experience of associated technical persons engaged in exploration
  |
| 
 2.
  | 
 Details of the area
  | 
 • Mauza/Village, Post
 
 Office, Taluka, District, State.
 
 • Survey of India
 
 Toposheet/OSM Sheet Number and Geo-coordinates of the area of all
 
 cornet points.
 
 • Mineral(s)  under investigation.
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| 
 3.
  | 
 Infrastructure & Environment
  | 
 Local infrastructure, host population,
 
 historical sites, forests, sanctuaries, national park and
 
 environmental settings of the area.
  |
| 
 4.
  | 
 Previous exploration
  | 
 • Details of previous exploration carried out by
 
 other agencies/parties.
  |
| 
 5.
  | 
 Geology
  | 
 • Brief regional
 
 geology of the area outlining the broad geological, structural
 
 frame work.
 
 • Local Geology,
 
 Deposit/mineralization type, geological setting and details of
 
 dip, strike, old workings, surface exposures etc. of the area
 
 under study also of adjoining nearby areas if the information is
 
 likely to have an impact on the area under study.
 
 • Geological map of appropriate scale with
 
 geocoordinates showing major litho-logical units, structural
 
 features; extent of surface minearlization, location of
 
 boreholes, pits, trenches, old workings etc.
  |
| 
 6.
  | 
 Aerial/ground geophysical/geochemical Data
  | 
 Details of aerial, geophysical & geochemical
 
 survey results taken up if any and their results (if carried
 
 out).
  |
| 
 7
  | 
 Technological investigation
  | 
 Details of technological investigation
 
 (pitting/trenching/dilling etc.).
  |
| 
 8.
  | 
 Type of Sampling
  | 
 Grab, Channel, random etc.
  |
| 
 9.
  | 
 Drilling technique & drill sampling employed
  | 
 • Drill type and
 
 details like core diameter, collar R.L., azimuth, inclination,
 
 coordinates of bore holes etc.
 
 • Whether core and chip
 
 sample recoveries have been properly recorded and results
 
 assessed
 
 • Measures taken to
 
 maximize sample recovery and ensure representative nature of the
 
 samples.
 
 • Whether a
 
 relationship exists between sample recovery and grade.
 
 • Logging-Whether core
 
 and chip samples have been logged to a level of detail to support
 
 • Appropriate Mineral Resource estimation, mining
 
 studies.
  |
| 
 10.
  | 
 Grade and chemical analysis
  | 
 Chemical analysis date fore grade determination
 
 and procedures
  |
| 
 11.
  | 
 Bulk Density/Specific Gravity
  | 
 Whether assumed or determined.
  |
| 
 13.
  | 
 Resource estimation techniques
  | 
 • Discussion on
 
 mineralization and techniques for resource estimation
 
 • The nature and appropriateness of the estimation
 
 techniques applied and key assumptions, including treatment of
 
 extreme grade values, maximum distance of extrapolation from data
 
 points.
  |
| 
 14.
  | 
 Geotechnical Studies For Dimensional stone
 
 report
  | 
 • Assessment of
 
 Blockability
 
 • Polishing Index
 
 • Measurement of compressive strength, tensile
 
 strength etc.
  |
| 
 15.
  | 
 Annexure/enclosures to the report
  | 
 The report shall include all relevant data
 
 including maps, sections, logs, analysis reports, photographs
 
 etc. in support of the estimates made.
  |
| 
 16.
  | 
 Any other information
  | 
 Any other information as may be available or
 
 required by any authority as prescribed.
  |

 II
----
 Minor Minerals
 
 Categorization of Minor Minerals for conditions relating to grant of Mineral Concessions
 
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| --- | --- |
| 
 Category-A
  | 
 Building materials/Road
 
 materials/General stones
 
 Bedded Stratified and Tabular
 
 deposits of regular and irregular habit:
 
 Road Metal, Boulder, Murrum, Calcareous Sand, Diaspore,
 
 Laterite, Lime Kankar, Sand (others) , Quartzite and Sand Stone
 
 (for making road metal), ordinary earth (used or filling or
 
 leveling purposes in construction or embankments, roads,
 
 railways, building) Brick-earth, Ordinary Earth, Soft &
 
 Murrum, Felsite, Shale, Slate, Shingle, Chalcedony pebbles used
 
 for ball mill purpose only, Lime shell, Kankar and Limestone used
 
 in kilns for manufacture of lime used as building materials,
 
 Gneissic & schistose rocks, Acid and Basic rock, Gabbro,
 
 Dolerite, Basalt, Norite etc. Phyllite, Quartzite, Sandstone,
 
 Slate, Boulder, Chalcedony Pebbles, Gravel, Ordinary Sand and
 
 Quartzite Pebbles, Trachyte, and Ordinary Clay.
  |
| 
 Category-B
  | 
 Industrial minerals
 
 (i)  Bedded Stratified and
 
 Tabular deposits of regular and irregular habit:
 
 Ball Clay, Red Clay Lithomargic Clay, Pozzolanic Clay, Natural
 
 Clay, Diatomaceous Clay, Bentonite, Chalk, Dolomite, Fireclay,
 
 Fuller's Earth, Gypsum, Quartzite, Molding Sand, Silica sand,
 
 Barytes, Chinaclay, Kaolin, Reh Matti, Ochre, Cale-Tuffa.
  |
| 
 (ii)  Lenticular bodies of all
 
 dimensions including Bodies occurring in echelon, silicified
 
 linear zones of composite veins. Lenses, pockets, stock works;
 
 irregular shaped modest to small sized bodies
 
 a. General Industrial Minerals
 
 Calcite, Clay (Others) , Faldspar,
 
 Ochre, Quartz, Steatite or Talc or Soapstone, China Clay, Kaolin
 
 and White Clay.
 
 b. Precious & Semi Precious
 
 Stones, Pegmatite, Ultra basic rocks and Mica
 
 Agate, Corundum, Diaspore (gem varities), Dunite, Peridotite,
 
 Pyroxenite and Mica all varities.
  |
| 
 Category-C
  | 
 Dimension and Decorative Stones
 
 Granite (Granite means dolerites, granite gneisses,
 
 migmatites, gabbros, anorthosites, rhyolites, syenites,
 
 leptynites, charnockites and any other igneous and
 
 ortho-metamophic rock types) Marble (marble means crystalline
 
 metamorphosed calcareous or dolomitic rocks and serpentine rock
 
 types) BHJ, Fuschite Quartzite.
  |

