Clinohumite
Tajikistan
1.12 carats
© Rarestone.com
Transparent gem-quality bright yellow to deep orange clinohumite was found only recently (in the early 1980s, and later in 2000). in the Pamir Mountains of Tadzhikistan. This facet rough has been cut into attractive orange-yellow gems.
A dark brown material has been found in the Taymyr region, Siberia.
Clinohumite Gemstones by Colour
This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
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Clinohumite Gemstones by Size
This table shows distribution of Clinohumite gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:0.34 cts
Heaviest:3.00 cts
Average:0.91 cts
Total photos:29
Do you have a larger Clinohumite? Why not upload a photo?
| General Information | ||||||||||||||||||||||
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| Chemical Formula |
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| Physical Properties of Clinohumite | ||||||||||||||||||||||
| Mohs Hardness | 6, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Specific Gravity | 3.13 to 3.75, Gemstones of the world (2001) More from other references | |||||||||||||||||||||
| Tenacity | Brittle, Blue Chart Gem Identification (2010) | |||||||||||||||||||||
| Cleavage Quality | Poor, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Fracture | Sub-Conchoidal, Gemstones (2009) | |||||||||||||||||||||
| Optical Properties of Clinohumite | ||||||||||||||||||||||
| Refractive Index | 1.623 to 1.728, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Optical Character | Biaxial/+, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Birefringence | 0.024 to 0.041, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Pleochroism | Distinct: brownish-orange - orange to yellow - yellow to colorless, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Dispersion | 0.021, Gemstones (2009) | |||||||||||||||||||||
| Colour | ||||||||||||||||||||||
| Colour (General) | Yellow, yellow-brown, brownish-orange, red-brown, Gemmological Tables (2004) More from other references | |||||||||||||||||||||
| Transparency | Transparent,Translucent,Opaque, Gemstones of the world (2001) More from other references | |||||||||||||||||||||
| Lustre | Vitreous,Resinous, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Fluorescence & other light emissions | ||||||||||||||||||||||
| Fluorescence (Short Wave UV) | Common orangy-yellow, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Fluorescence (Long-Wave UV) | Inert, Blue Chart Gem Identification (2010) | |||||||||||||||||||||
| Crystallography of Clinohumite | ||||||||||||||||||||||
| Crystal System | Monoclinic, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||||||
| Habit | Prismatic-rounded, Gemstones (2009) | |||||||||||||||||||||
| Geological Environment | ||||||||||||||||||||||
| Where found: | The occurrence is in contact zones in limestone or dolomite, Gems, Sixth Edition (2006) More from other references | |||||||||||||||||||||
| Inclusions in Clinohumite | ||||||||||||||||||||||
| Euhedral crystals, fingerprints, color zoning, growth lines - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 4 | ||||||||||||||||||||||
| Further Information | ||||||||||||||||||||||
| Mineral information: | Clinohumite information at mindat.org | |||||||||||||||||||||
| Significant Gem Localities | ||||||||||||||||||||||
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