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Robertsite

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HCH613183

Robertsite

Description Tabs

Description
Locality: 
Etiro Farm 50, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 1 cm
Largest Crystal: 
0.05cm
Description

Redbrown crystals up to 0.5 mm large are sitting rich on this speciem.

Mineral Data
What's on the rock

Robertsite

Formula: 
Ca3Mn3+4(PO4)3O2·3H2O
Strunz: 
8.DH.30
Hardness: 
3.5
Streak: 
Red-brown
Type Locality: 
Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA

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