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Ahlfeldite

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SKY664134

Ahlfeldite

Classic Locality

Description Tabs

Description
Locality: 
El Dragón Mine, Quijarro Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1 × 0.8 cm
Description

Pink globular crystal group of the rare selenite mineral ahlfeldite in a matrix of krutaite from the famous El Dragon mine in Bolivia. known for its paragenesis of selenium species.

Associated mineral is minoritary chalcomenite.

Mineral Data
What's on the rock

Ahlfeldite

Formula: 
(Ni,Co)SeO3·2H2O
Strunz: 
4.JH.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Type Locality: 
Virgen de Surumi mine (Pacajake mine; Pakajake mine), Pakajake Canyon (Pacajake Canyon), Chayanta Province, Potosí Department, Bolivia

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