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Herderite

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CR14869

Herderite

Description Tabs

Description
Locality: 
Paraiba, Brazil
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 5.3 × 3.8 cm
Description

Very unusual combination: Hundreds of small gemmy herderite crystals on mica-quartz matrix sitting on large and perfect developed arsenopyrite crystals up to 15 mm and transparent pale greenish fluorite crystals.

Very interesting and aesthetic specimen!

Mineral Data
What's on the rock

Herderite

Formula: 
CaBePO4(F,OH)
Strunz: 
8.BA.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Type Locality: 
Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany