Rob Lavinsky, iRocks.com – CC-BY-SA-3.0 [CC-BY-SA-3.0], via Wikimedia Commons
Väyrynenite
The only reported gems are of Pakistani material, reddish-pink in color, and tiny.
Väyrynenite Information
| Data | Value |
|---|---|
| Name | Väyrynenite |
| Colors | Pale pink, rose-red. |
| Crystallography | Monoclinic; crystals prismatic or in druses. |
| Refractive Index | 1.638-1.667 |
| Luster | Vitreous. |
| Hardness | 5 |
| Fracture | Irregular, uneven |
| Specific Gravity | 3.183-3.215 (Pakistan = 3.23). |
| Birefringence | 0.026 |
| Cleavage | Distinct 1 direction |
| Stone Sizes | Faceted gems are extremely small (approximately 0.5 carat) and exceedingly rare. |
| Luminescence | None reported. |
| Luminescence Present | No |
| Transparency | Transparent to translucent. |
| Absorption Spectrum | Not reported. |
| Formula |
BeMnPO4(OH,F) |
| Pleochroism |
(Pakistan) yellow-pink/light pink/dark pink. |
| Optics |
a = 1.638-1.669; β = 1.658-1.661; γ = 1.664-1.667. Biaxial (-), 2V=54°. (Pakistan material R.l. = 1.639-1.667). |
| Optic Sign | Biaxial - |
Optics: a=1.638-1.669; β= 1.658-1.661; γ:1.664-1.667.
Biaxial (-), 2V=54°.
(Pakistan material R.l. = 1.639-1.667).
Occurrence: In lithium pegmatites.
Viitaniemi, Finland.
Pakistan: pink, cuttable material.
Comments: The only reported gems are of Pakistani material, reddish-pink in color, and tiny.
Name: For Heikki Allan Väyrynen, a Finnish geologist
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