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Robertsite

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SHS134475

Robertsite

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Description
Locality: 
Hagendorf South Pegmatite, Bavaria, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.5 × 1.4 cm
Description

Nice yellow robertsite crystals on matrix

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