Poudretteite
A variety of Minerals
What is Poudretteite?
Poudretteite is an extremely rare mineral and gemstone that was first discovered as minute crystals in Mont St. Hilaire, Quebec, Canada, during the 1960s. The mineral was named for the Poudrette family because they operated a quarry in the Mont St. Hilaire area where poudretteite was originally found, and the quarry is currently owned by the United Kingdom based Salmon Mining Industries Inc. Has a barely detectable radioactivity.
Optical Properties
- Refractive Index
- 1.511-1.532
- Birefringence
- 0.021
- Pleochroism
- Strong: purple-pink/colourless to brownish
- Optical Character
- Uniaxial positive
Poudretteite Market Value Calculator
Estimate the market value of Poudretteite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Poudretteite Localities Map
See where Poudretteite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless, very pale pink
- Hardness (Mohs)
- 5
- Streak
- White
Chemical Properties
- Chemical Formula
- KNa2B3Si12O30
- Elements
- B, K, Na, O, Si
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