|
|
name:
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Clinohumite
|
| gemstone variety:
|
Clinohumite
|
| trade name 1:
|
Clinohumite
|
| trade name 2:
|
Clino Humite
|
| trade name 3:
|
|
| basic colour:
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orange
|
|
|
Colour :
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yellow to intensive orange-yellow
|
Quality :
|
the intensity and the beauty of the orange colour are
important. Inclusions are common and accepted
|
History :
|
The only known deposit of Clinohumite in gem quality
was discovered in 1983.
|
Curiosities / Saga :
|
|
Countrys of Origin :
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Pamir Mountains in South Central Russia
|
Birthstone :
|
|
Hardness :
|
6.5
|
Treatment :
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none
|
Size :
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mainly very small sizes below 0.25 carat. Cut stones
in fine quality of more than 1.00 carat are rare
|
Specific gravity :
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3.10 - 3.20
|
Chemical Composition Formula :
|
Mg9 (Oh,F)2 (SiO4)4
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Chemical Composition Name :
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hydrous fluor- magnesium- silicate
|
Crystal system :
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monoclinic
|
Light refraction :
|
1.625 - 1.675
|
Double refraction :
|
0.024 - 0.041
|
|
|
