Augelite
Champion Mine, White Mountain Peak, White Mountains, Mono County, California, USA
1.30 carats
© Rarestone.com
Augelite is an extremely rare phosphate mineral found at a very few localities worldwide. Colourless, yellowish, pale rose or pale blue crystals of augelite have been fashioned.
White Mountain, California appeared to be the only source of facet-grade rough, but it has been reported to be exhausted.
Augelite 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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Augelite Gemstones by Size
This table shows distribution of Augelite 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:0.56 cts
Heaviest:1.77 cts
Average:1.21 cts
Total photos:3
Do you have a larger Augelite? Why not upload a photo?
| General Information | |||||||||||||||||
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| Chemical Formula |
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| Physical Properties of Augelite | |||||||||||||||||
| Mohs Hardness | 4.5 to 5, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Specific Gravity | 2.70 to 2.75, Gemstones of the world (2001) More from other references | ||||||||||||||||
| Tenacity | Brittle, Gemstones (2009) Very brittle | ||||||||||||||||
| Cleavage Quality | Perfect, Gemstones (2009) | ||||||||||||||||
| Fracture | Conchoidal, Gemstones (2009) | ||||||||||||||||
| Heat Sensitivity | Sensitive, Gemstones (2009) | ||||||||||||||||
| Optical Properties of Augelite | |||||||||||||||||
| Refractive Index | 1.570 to 1.591, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Optical Character | Biaxial/+, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Birefringence | 0.020 to 0.021, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Pleochroism | Nil, Gemstones (2009) | ||||||||||||||||
| Dispersion | Nil, Gemstones (2009) | ||||||||||||||||
| Colour | |||||||||||||||||
| Colour (General) | Colourless, yellowish, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Transparency | Transparent, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Lustre | Vitreous, Gems, Sixth Edition (2006) More from other references | ||||||||||||||||
| Fluorescence & other light emissions | |||||||||||||||||
| Fluorescence (General) | Shows no luminescence, Gems, Sixth Edition (2006) | ||||||||||||||||
| Crystallography of Augelite | |||||||||||||||||
| Crystal System | Monoclinic, Gemmological Tables (2004) More from other references | ||||||||||||||||
| Habit | Tabular, Gems, Sixth Edition (2006) More from other references | ||||||||||||||||
| Geological Environment | |||||||||||||||||
| Where found: | Occurs in granitic pegmatites and hydrothermal veins., Gemstones (2009) | ||||||||||||||||
| Further Information | |||||||||||||||||
| Mineral information: | Augelite information at mindat.org | ||||||||||||||||
| Significant Gem Localities | |||||||||||||||||
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