Poudretteite
Myanmar
1.30 carats
© Palagems
Poudrettite forms transparent violet to pink roughly equant barrel-shaped prismatic crystals.
Poudretteite is a very rare material. Clean gems over 1 ct are uncommon.
Poudretteite 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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Poudretteite Gemstones by Size
This table shows distribution of Poudretteite 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:.37 cts
Heaviest:1.30 cts
Average:0.69 cts
Total photos:3
Do you have a larger Poudretteite? Why not upload a photo?
| General Information | ||||||||||||||||||
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| Chemical Formula |
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| Photos of natural/un-cut material from mindat.org | ||||||||||||||||||
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| Physical Properties of Poudretteite | ||||||||||||||||||
| Mohs Hardness | 5, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Specific Gravity | 2.51 to 2.53, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Optical Properties of Poudretteite | ||||||||||||||||||
| Refractive Index | 1.511 to 1.532, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Optical Character | Uniaxial/+, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Birefringence | 0.021, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Pleochroism | Strong: purple-pink/colourless to brownish, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Colour | ||||||||||||||||||
| Colour (General) | Violet, pink, colourless, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Transparency | Transparent, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Crystallography of Poudretteite | ||||||||||||||||||
| Crystal System | Hexagonal, Gemmological Tables (2004) More from other references | |||||||||||||||||
| Habit | Roughly equant barrel-shaped prismatic crystals, Gems, Sixth Edition (2006) | |||||||||||||||||
| Geological Environment | ||||||||||||||||||
| Where found: | Poudrettite is found in marble xenoliths within nepheline syenite breccias in an intrusive alkalic gabbro-syenite complex., Gems, Sixth Edition (2006) | |||||||||||||||||
| Further Information | ||||||||||||||||||
| Mineral information: | Poudretteite information at mindat.org | |||||||||||||||||
| Significant Gem Localities | ||||||||||||||||||
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