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Pennantite

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JYJ1066370

Pennantite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.6 × 1.3 cm
Description

Green Ga analogue of pennantite from the Tsumeb mine, Namibia. 

Rare mineral. SEM-EDS & SCXRD confirmed. New mineral phase, that is yet not possible to describe by SCXRD and needs further investigation. 

Mineral Data
What's on the rock

Pennantite

Formula: 
Mn2+5Al(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
2.0 - 2.5
Type Locality: 
Benallt Mine (Tyddyn Meirion mine; Ty Canol mine), Rhiw, Llanfaelrhys, Lleyn Peninsula, Gwynedd (Caernarvonshire), Wales, UK