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Hydroxylherderite & Beryllonite

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SER770579

Hydroxylherderite & Beryllonite

Description Tabs

Description
Locality: 
Braldu Valley, Skardu District, Gilgit-Baltistan, Pakistan
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.1 × 1.8 cm
Largest Crystal: 
1.30cm
Description

a large, light green crystal on matrix with colourless beryllonite

Mineral Data
What's on the rock

Hydroxylherderite

Formula: 
CaBe(PO4)(OH,F)
Strunz: 
8.BA.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Streak: 
white

Beryllonite

Formula: 
NaBePO4
Strunz: 
8.AA.10
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Joe McKeen Mountain locality (McKean Farm), Stoneham, Oxford Co., Maine, USA