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Hydroxylherderite With Pollucite

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KRM113258

Hydroxylherderite With Pollucite

Description Tabs

Description
Locality: 
Doko, Basha Valley, Skardu, Gilgit-Baltistan, Pakistan
Size Range: 
Cabinet (10-18 cm)
Size: 
5 × 10 × 9 cm
Description

A superb high quality specimen of unusual combination , of  well terminated hydroxylherderite with well terminated rare pollucite.

There is no damage except natural etching.

 

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

Pollucite

Formula: 
(Cs,Na)2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Hardness: 
6.5
Streak: 
white
Type Locality: 
La Speranza (Pisani's Quarry), San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...
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