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Glittering
Stones >> Semi
Precious Stones >> Kyanite
Semi Precious Stone Kyanite
Kyanite is a member of aluminosilicate series that includes polymorph
andalusite and sillimanite. The name kyanite is derived from the
Greek word kyanos meaning blue, typically blue silicate mineral
found in aluminium rich metamorphic pegmatites or secondary rock.
The minerals associated are andalusite, sillimanite, quartz,
staurolite, micas and garnets. The other names for kyanite are
disthene, munkrudite, cyanite, rhaeticite (white grey kyanite).
The mineral kyanite is used as a gemstone, ceramic product, electrical
insulators, and also as an abrasives. The colors of kyanite mineral
are blue, greenish blue and it is found in Nepal, India, Burma,
USA and Kenya.
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Historical Facts of Kyanite
| Refractive Index |
1.716 – 1.731 |
| Chemical Composition |
Al2SiO5 |
| Hardness |
4.5 – 7.0 |
| Density |
3.56 - 3.67 |
| Crystal Group |
Orthorhombic |
| Luster |
Vitreous, Pearly |
| Ocurrence |
Kenya, Nepal, India, Burma,U.S.A |
| Color |
Blue, Greenish Blue, White, Black |
| Other names |
Disthene, Munkrudite Cyanite, Rhaeticite (White-grey
kyanite) |
| Associate minerals |
Andalusite, Sillimanite, Quartz, Staurolite, Micas,
Garnets |
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Gemstone Kyanite
| Kyanite Bracelet |
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| Kyanite Earring |
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| Kyanite Necklace |
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| Kyanite Rings |
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