Jeremejevite
Erongo Mountains, Karibib Constituency, Erongo Region, Namibia
1.61 carats
© Rarestone.com
Jeremejevite 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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Jeremejevite Gemstones by Size
This table shows distribution of Jeremejevite 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:0.14 cts
Heaviest:3.45 cts
Average:0.69 cts
Total photos:15
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| General Information | |||||||||||||||||||||||
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| Chemical Formula |
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| Physical Properties of Jeremejevite | |||||||||||||||||||||||
| Mohs Hardness | 6.5 to 7, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Specific Gravity | 3.28 to 3.33, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Cleavage Quality | None, Gemstones (2009) | ||||||||||||||||||||||
| Fracture | Conchoidal, Gemstones (2009) | ||||||||||||||||||||||
| Optical Properties of Jeremejevite | |||||||||||||||||||||||
| Refractive Index | 1.638 to 1.650, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Optical Character | Uniaxial/-, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Birefringence | 0.007 to 0.009, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Pleochroism | Dichroism: colorless - body color, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Dispersion | Distinct, Gemstones (2009) | ||||||||||||||||||||||
| Colour | |||||||||||||||||||||||
| Colour (General) | Colourless, yellow, blue, violet, Gemmological Tables (2004) More from other references | ||||||||||||||||||||||
| Transparency | Transparent, Gemmological Tables (2004) More from other references | ||||||||||||||||||||||
| Lustre | Vitreous, Gemstones (2009) | ||||||||||||||||||||||
| Fluorescence & other light emissions | |||||||||||||||||||||||
| Fluorescence (General) | Inert, Blue Chart Gem Identification (2010) | ||||||||||||||||||||||
| Crystallography of Jeremejevite | |||||||||||||||||||||||
| Crystal System | Hexagonal, Blue Chart Gem Identification (2010) More from other references | ||||||||||||||||||||||
| Habit | Hexagonal prisms, sometimes tapered with vicinal forms and with pyramidal terminations, Gems, Sixth Edition (2006) More from other references | ||||||||||||||||||||||
| Geological Environment | |||||||||||||||||||||||
| Where found: | A rare late hydrothermal mineral formed in granite pegmatites, Gems, Sixth Edition (2006) | ||||||||||||||||||||||
| Inclusions in Jeremejevite | |||||||||||||||||||||||
| Growth lines and zoning, "fingerprints" (partially healed fractures with fluid-filled channels) - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 4 | |||||||||||||||||||||||
| Further Information | |||||||||||||||||||||||
| Mineral information: | Jeremejevite information at mindat.org | ||||||||||||||||||||||
| Significant Gem Localities | |||||||||||||||||||||||
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