Hardness (Check one) Mineral Color Streak Luster The mineral Mineral Name – Other properties: ID Color check one shows: Peels in sheets, (check one) Fizzes with HCl, glass Magnetic, by fingernail Double image, etc. 6.0 2.5 by glass AND scratch 6.0 than than scratched – Metallic More Non-metallic Cleavage Not Fracture Scratched Scratches Less doesn’t 2.5 fingernail Example Other common objects to further determine hardness: Copper penny = 3.5 Iron Nail =4.5 Steel nail 5.5 6.5 Streak Plate 7.0 –
Hardness (Check one) Other properties: Peels in sheets, Fizzes with HCl, Magnetic, Double image, etc. Mineral ID Color Streak Color Luster – check one The mineral shows: (check one) Scratched by fingernail Less than 2.5 Scratches glass More than 6.0 Not scratched by fingernail AND doesn’t scratch glass 2.5 – 6.0 Mineral Name Metallic Non-metallic Cleavage Fracture Example Other common objects to further determine hardness: Copper penny = 3.5 Iron Nail =4.5 Steel nail 5.5 – 6.5 Streak Plate 7.0
mineral_id_lab.docx