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Zwieselite & Benyacarite

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SER616108

Zwieselite & Benyacarite

Description Tabs

Description
Locality: 
Folgosinho, Gouveia, Guarda District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.5 × 1.6 cm
Description

Orange crystalline zwieselite hosts a group of yellow crystals of benyacarite

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

Benyacarite

Formula: 
(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2·14H2O
Strunz: 
8.DH.35
Crystal System: 
Orthorhombic
Hardness: 
2.5 - 3.0
Type Locality: 
El Criollo Mine, Cerro Blanco pegmatite district, Tanti, Punilla Department, Córdoba, Argentina
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