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Matulaite

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MEX688673

Matulaite

Rare Mineral

Description Tabs

Description
Locality: 
David Mine, Hirschberg, Warstein, Arnsberg, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.2 × 0.9 cm
Weight: 
1.00gr
Description

Small white balls of rare matulaite. The specimen shows the typical structure and vitreous lustre. Additional are here minor cacoxenite together with matulaite.

Mineral Data
What's on the rock

Matulaite

Formula: 
(Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8·8H2O
Strunz: 
8.DK.30
Hardness: 
1.0
Type Locality: 
Bachman Mine, Hellertown, Lower Saucon Township, Northampton Co., Pennsylvania, USA