Kämmererite
Kämmererite was discovered in 1851 and is named after the A. Kämmer, the mining director at St. Petersburg.
Kämmererite is a chromium-bearing variety of Clinochlore with bright purple to a deep crimson red colour.
Fashioning of Kämmererite is very difficult because the crystals are usually thin, micaceous with a perfect cleavage.
Kämmererite is a chromium-bearing variety of Clinochlore with bright purple to a deep crimson red colour.
Fashioning of Kämmererite is very difficult because the crystals are usually thin, micaceous with a perfect cleavage.
| General Information | ||||||||||||||
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| A variety or type of: | Clinochlore | |||||||||||||
| Other Names/Trade Names: | ||||||||||||||
| Chemical Formula |
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| Physical Properties of Kämmererite | ||||||||||||||
| Mohs Hardness | 2 to 2.5, Gems, Sixth Edition (2006) | |||||||||||||
| Specific Gravity | 2.60 to 2.64, Gems, Sixth Edition (2006) | |||||||||||||
| Cleavage Quality | Perfect, Gems, Sixth Edition (2006) | |||||||||||||
| Optical Properties of Kämmererite | ||||||||||||||
| Refractive Index | 1.571 to 1.597, Gems, Sixth Edition (2006) RI for the alpha, beta and gamma rays is 1.571–1.588, 1.571–1.588, 1.576–1.597 | |||||||||||||
| Optical Character | Biaxial/+,-, Gems, Sixth Edition (2006) | |||||||||||||
| Birefringence | 0.003, Gems, Sixth Edition (2006) | |||||||||||||
| Pleochroism | Pleochroism is notable, violet to hyacinth-red., Gems, Sixth Edition (2006) | |||||||||||||
| Colour | ||||||||||||||
| Colour (General) | Lilac to purple, Management Team (2012) | |||||||||||||
| Transparency | Transparent,Translucent, Handbook of mineralogy (2001) | |||||||||||||
| Lustre | Pearly,Greasy,Dull (Earthy), Handbook of mineralogy (2001) | |||||||||||||
| Crystallography of Kämmererite | ||||||||||||||
| Crystal System | Monoclinic, Gems, Sixth Edition (2006) | |||||||||||||
| Habit | Thin to thick pseudohexagonal crystals, Gems, Sixth Edition (2006) | |||||||||||||
| Further Information | ||||||||||||||
| Mineral information: | Kämmererite information at mindat.org | |||||||||||||
| Significant Gem Localities | ||||||||||||||
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