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    | 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 Kunzite Kunzite is the pink to light purple gem variety of the mineral Spodumene.Although kunzite is a relatively soft and delicate gem, and can fade after prolonged exposure to light, its appealing color makes it a popular gem. Small gems are seldom cut from kunzite because of its cleavage and strong pleochroism. It is rarely seen in rings, necklaces, or any other forms of jewelry where small stones are required.
 Color: Pink, Lilac, Light Violet
 Categories: semi-precious stone
 Chemical Composition: LiAlSi2O6
 Crystal Group: Monoclinic
 Refractive Index: 1.660 - 1.675
 Hardness: 7
 Density: 3.17 - 3.19
 Occurrence: Africa, Brazil, Canada, Madagascar, Mexico, Myanmar, Afghanistan, Sweden, and USA (California).
 
 
 |  |  Natural Sapphire Sapphire is a gemstone variety of the mineral corundum,Blue is the main colour of the sapphire. Its beauty, its magnificent colours, its transparency, but also its constancy and durability are qualities associated with this gemstone by gemstone lovers and specialists alike.Fancy sapphires are pure individualism and are just made for lovers of individualistic coloured stone jewellery. They are currently available in a positively enchanting variety of designs - as ring stones, necklace pendants or ear jewellery.
 Color: blue, bluish purple, bluish violet, greenish yellow, orangy yellow, purple, red, reddish orange, red-orange or orange-red, reddish purple, red-purple or purple-red, slightly purplish red, violet, violetish blue, yellow, yellowish orange, pink
 Categories: precious stone
 Chemical Composition: AL22O3
 Crystal Group: Hexagonal
 Refractive Index: 1.759-1.778
 Hardness: 9
 Density: 4
 Occurrence: Sri Lanka, Burma, India, Kenya, Tanzania, Madagascar, Thailand, U.S.A., China
 
 
 |  |  Natural Tourmaline Tourmaline is actually a group of several different minerals which have similar crystal structures, but complex and variable chemical formulas. Tourmaline is the most varicolored of all gemstones. It occurs in all colors, but red, green, and multicolored are its most famous gem colors.
 Color: blue, bluish green, green, greenish blue, green-blue or blue-green, greenish yellow, orangy red, red, red-orange or orange-red, red-purple or purple-red, slightly purplish red, slightly yellowish green, strongly purplish red, strongly yellowish green, very slightly bluish green, yellowish green, yellow-green or green-yellow, colorless, brown, pink
 Categories: semi-precious stone
 Chemical Composition: (NaCa)(LI,MgFe,Al)9B3Si6(O,OH)31
 Crystal Group: Hexagonal
 Refractive Index: 1.624(+.005, -.005) - 1.644(+.006, -.006)
 Hardness: 7-7.5
 Density: 3.06 (.05, +.15)
 Occurrence: Brazil, East Africa, Nigeria, Madagascar, U.S.A.
 
 
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