average salary packages in the old iit's are 6 to 7 lakhs per year. and i new iit's it is 4 to 5 lakhs per year.in iit one can get the package more than 30 lakhs per year. so the achieving of the best package is depends on the acadamics record.thanks.verage salary packages in the old iit's are 6 to 7 lakhs per year. and i new iit's it is 4 to 5 lakhs per year.
Fluorite comes in a wide range of colors and has consequently been dubbed the most colorful mineral in the world. Every color of the rainbow in various shades are represented by fluorite samples, along with white, black, and clear crystals. The most common colors are purple, blue, green, yellow, or colorless. Less common are pink, red, white, brown, and black. Color zoning or banding is commonly present. The color of the fluorite is determined by factors including impurities, exposure to radiation, and the absence or voids of the color centers.
Purple fluorite. A negative ion may be missing from the structure, creating a site that will attract and trap any free electron. This defect is sometimes known as a Frenkel defect. This creates an electron color center, as in fluorite of a purple color. In classical transparent fluorite (Figure A), the crystal lattice has a regular distribution of fluorine and calcium ions. In Figure B, a fluoride ion has been displaced.