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Zwieselite

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SKY216772

Zwieselite

Rare Mineral

Description Tabs

Description
Locality: 
Silbergrube, Waidhaus, Upper Palatinate, Bavaria, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.5 × 1 cm
Description

Zwieselite is a very rare Fe-Mn phosphate that almost never occurs in crystals. What is exceptional of this specimen is that it has a fairly well formed brown crystal of the species (photo 1) !!.

Mineral Data
What's on the rock

Zwieselite

Formula: 
(Fe2+,Mn2+)2(PO4)F
Strunz: 
8.BB.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Type Locality: 
Birkhöhe Quarry (Birkenhöhe Quarry), Zwiesel, Lower Bavaria, Bavaria, Germany

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