| Gemstone Chart |
 Natural Fluorite
Fluorite has a wide range of colors including yellow, blue, pink purple and green. It is an interesting and beautiful gemstone.
Color: Colorless, yellow, brown, green, blue, violet, pink
Categories: semi-precious stone
Chemical Composition: CaF2
Crystal Group: Cubic
Refractive Index: 1.43
Hardness: 4
Density: 3.18
Occurrence: Namibia, U.K., Switzerland, Nigeria, Czechoslovakia, Canada, Poland, Italy, Norway, Germany, U.S.A.
|  Natural Rhodolite
Rhodolite is a beautiful pink to violetish red garnet which was named after the rhododendron flower. Commercially rhodolite is one of the most important garnets. Rhodolite is quite available in small sizes which are relatively low in price. Very fine large rhodolite garnets are rare and are moderate in price.
Color: red, purple-red
Categories: semi-precious stone
Chemical Composition: Al2(SiO4)3
Crystal Group: Cubic
Refractive Index: 1.75 - 1.77
Hardness: 7.25
Density: 3.74 - 3.94
Occurrence: Brazil, East Africa, Ceylon, India, Madagascar, Zimbabwe
|  Natural Sphalerite
Sphalerite is one of the very few minerals that has a total of six directions of cleavage, and occurs in many different colors. It is an unusual rare gemstone which is craved for by people as it possesses more brilliance than diamonds.
Color: Orange, yellow, brown, green
Categories: semi-precious stone
Chemical Composition: ZnS
Crystal Group: Cubic
Refractive Index: 2.37
Hardness: 3.5-4
Density: 4.05
Occurrence: Spain, Mexico
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