Poudretteite
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://gemfyi.com/iframe/entity/poudretteite/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://gemfyi.com/entity/poudretteite/Add a dynamic SVG badge to your README or docs.
[](https://gemfyi.com/entity/poudretteite/)Use the native HTML custom element.
Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.0
Specific Gravity
2.51 – 2.53
Refractive Index
1.511 – 1.532
Crystal System
Hexagonal
Color
various
Birefringence
0.021
Pleochroism
Strong: purple-pink/colourless to brownish
Mohs Hardness
| Mohs | Reference mineral | Poudretteite |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | ● |
| 6 | Orthoclase | |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Price Tier
Budget (< $50/ct)
Where to Buy Poudretteite
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
About Poudretteite
Poudretteite is an extremely rare cyclosilicate mineral displaying a delicate pale pink to colorless appearance with a vitreous luster and excellent transparency. It was first described in 1987 from the Poudrette quarry in Mont Saint-Hilaire, Quebec, Canada, making it one of the rarest gemstones on Earth. Gem-quality crystals are exceptionally scarce, with only a handful of faceted stones known to exist.
On this page
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Poudretteite?
Poudretteite is an extremely rare cyclosilicate mineral displaying a delicate pale pink to colorless appearance with a vitreous luster and excellent transparency. It was first described in 1987 from the Poudrette quarry in Mont Saint-Hilaire, Quebec, Canada, making it one of the rarest gemstones on
What is the hardness of Poudretteite?
Poudretteite has a Mohs hardness of 5.0, making it moderate for use in jewelry.
What color is Poudretteite?
Poudretteite is primarily Various.
How much does Poudretteite cost?
Poudretteite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Poudretteite?
Poudretteite belongs to the Hexagonal crystal system.