| Gemstone Chart |
 Natural Fire Agate
Fire Agate is a variety of agate containing inclusions of goethite or limonite, it is a layered stone. The layers are small enough that light entering them forms interference colors known as "fire."
Color: Orange, green, purple, Red, blue, peacock
Categories: semi-precious stone
Chemical Composition: SiO2
Crystal Group: Trigonal
Refractive Index: 1.544 - 1.553
Hardness: 7
Density: 2.65
Occurrence: Central Mexico, Arizona USA
|  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 Grossularite
A member of the garnet group, grossularite is found in a variety of colors including, yellow, brown, white, colorless, green, violet-red, and orangey red.
Color: Brown, yellow, green
Categories: semi-precious stone
Chemical Composition: Ca3Al2(SiO4)3
Crystal Group: Cubic
Refractive Index: 1.72-1.748
Hardness: 7.25
Density: 3.65
Occurrence: Canada, East Africa, Pakistan, New Zealand, Ceylon, South Africa, U.S.A.
|  Natural Hemimorphite
Hemimorphite is a usually white or colorless mineral, essentially Zn4Si2O7(OH)2¡¤H2O, an important ore of zinc. Also called calamine.
Color: Light blue, dark blue, green ,white.
Categories: semi-precious stone
Chemical Composition: (Zn4Si2O7(OH)2.H2O)
Crystal Group: Orthorhombic
Refractive Index: 1.612-1.633
Hardness: 5
Density: 3.44
Occurrence: Franklin and Sterling Hill New Jersey, New Mexico, Montana, Arizona, U.S.A; Congo; Nerchinak in Transbaikalia, Siberia; Zambia; Santa Eulalia and Mapimi, Mexico; England; Wenshan, Yunnan Province, China.
|  Natural Idocrase
Primarily a green color that will resemble jade.idocrase is one stone that is sometimes mistaken for jade by jewelers and consumers alike. Idocrase is from the greek and means mixed form, an allusion to its crystals showing a mixture of other mineral forms.
Color: normally green, but also can be brown, yellow, blue and/or purple.
Categories: semi-precious stone
Chemical Composition: nesosilicate or sorosilicate
Crystal Group: Tetragonal
Refractive Index: 1.71 - 1.73
Hardness: 6.5
Density: 3.3 - 3.5
Occurrence: Quebec, Canada; California and the New England region of USA; Mt Vesuvius, Italy; Ural Mountains, Russia, Switzerland, East Africa
|  Natural Jadeite
A rare, usually green mineral of the pyroxene group. Jadeite can also occur in white, auburn, buff, or violet varieties. The most highly valued form of jade consists of jadeite.Jade has a history in China of at least four thousands years.Experts believe that, although more expensive, diamonds and gold cannot be compared with jade - jade is animated with a soul.
Color: Pure white thru pink, brown, red, orange, yellow, mauve, violet, blue, and black, to an extensive range of green and mottled green and white.
Categories: semi-precious stone
Chemical Composition: NaAl(SiO3)2
Crystal Group: Monoclinic
Refractive Index: 1.654 - 1.667
Hardness: 7
Density: 3.32
Occurrence: Northern Myanmar. Non commercial discoveries of Jadeite have also been reported in China; Russia (in the Polar Urals); Niigata, Japan; San Benito County, California, USA, and Guatemala.
|  Natural Kyanite
Kyanite is a calming stone. It helps to quiet the mind, dissolving emotional, mental, or spiritual confusion, and letting go of anxiety.
Color: Blue, Greenish Blue.
Categories: semi-precious stone
Chemical Composition: AL2SIO5
Crystal Group: Triclinic
Refractive Index: 1.716 ¨C 1.731
Hardness: 4.5 ¨C 7.0
Density: 3.56 ¨C 3.68
Occurrence: Kenya, Nepal, India, Burma,U.S.A.
|  Natural Oligoclase
Oligoclase is a rock-forming mineral belonging to the plagioclase feldspars. Oligoclase is famous for its two gem varieties: Sunstone and Moonstone.
Color: green, orange, red, colorless
Categories: semi-precious stone
Chemical Composition: [Na,Ca]AlSi3O8
Crystal Group: Triclinic
Refractive Index: 1.53 - 1.54
Hardness: 6 - 6.5
Density: 2.62 - 2.65
Occurrence: Tvedestrand and Hitero on the south coast of Norway; near Lake Baikal Russia; Ontario, Canada; Tanzania; Kangayam, southern India; France; and in Maine, New Mexico, New York, North Carolina, Pennsylvania, Virginia and Oregon in the USA.
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