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Hurlbutite with Vayrynenite & Beryllonite

#50701

Hurlbutite with Vayrynenite & Beryllonite

#50701
Availability
Sold
Size
5.5 x 7 x 5 cm - Sm Cabinet 
Formula
CaBe2P2O8 (RRUFF)
Locality
Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland
Tagged
beryllium , pegmatite mineral

A great specimen with two very rare beryllium phosphates from a Lithium-Cesium-Tantalum type pegmatite, which has produced so far at least 109 species and 2 type locality minerals. The Hurlbutite is at the tip of the green arrow, while the Vayrynenite is at the blue arrow. Vayrynenite is a Mn-Be phosphate is found at fewer than 15 localities worldwide. All of these specimens in the daily five today were collected in 1978.

Hurlbutite

Formula
CaBe2P2O8 
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
None, None, None 
Luster
Vitreous - Greasy 
Color
colorless, greenish white, yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness

Data courtesy of Webmineral.

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