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Jahnsite-(CaMnFe)

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SER581493

Jahnsite-(CaMnFe)

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 1.5 cm
Description

Several brown, elongated jahnsite crystals on pegmatite; self  collected on 2012

Mineral Data
What's on the rock

Jahnsite-(CaMnFe)

Formula: 
{Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0
Streak: 
White
Type Locality: 
Fletcher Mine, Groton, Grafton Co., New Hampshire, USA