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Beryllonite With Topaz & Lepidolite

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KRM113273

Beryllonite With Topaz & Lepidolite

Description Tabs

Description
Locality: 
Shengus, Haramosh Mountains, Skardu District, Gilgit-Baltistan, Pakistan
Size Range: 
Cabinet (10-18 cm)
Size: 
6 × 11.5 × 7 cm
Description

A very superb nice combination specimen of well terminated rare berylliun mineral beryllonite  , lighy blue aqua color well terminated topaz  &  lepidolite .

The  beryllonite crystals can be seen throughout the specimen.

Undamaged.

A very good high quality specimen from the locality.

Mineral Data
What's on the rock

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

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Lepidolite

Synonym Of: 

Mica Group

Formula: 
KLi2Al(Si4O10)(F,OH)2 to K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Group Parent: 
Mica
Hardness: 
2.5 - 3.5
Colour: 
Pink, light purple, light rose red
Streak: 
White

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