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Mélonjosephite & Robertsite

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SER915972

Mélonjosephite & Robertsite

Description Tabs

Description
Locality: 
Sandamap Pegmatite, Sandamap North Farm 115, Dâures, Erongo Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 1.6 × 1.1 cm
Description

some very tiny, dark green, platy melonjosephite crystals on apple green tavorite with dark red robertsite blades and rosettes

Mineral Data
What's on the rock

Mélonjosephite

Formula: 
CaFe2+Fe3+(PO4)2(OH)
Strunz: 
8.BG.10
Hardness: 
5.0
Streak: 
Greenish
Type Locality: 
Angarf-South pegmatite, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco

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