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Jahnsite-(MnMnMg) & Laueite

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SER683153

Jahnsite-(MnMnMg) & Laueite

Type Locality

Description Tabs

Description
Locality: 
Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.8 × 0.5 cm
Description

Several lemon-yellow crystals of the new mineral Jahnsite-(MnMnMg) , analysed by Pietro Vignola, that I discovered in Sapucaia mine on 2013, here with orange laueite

Mineral Data
What's on the rock

Jahnsite-(MnMnMg)

Formula: 
Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2O
Crystal System: 
Monoclinic
Type Locality: 
Sapucaia do Norte, Galiléia, Minas Gerais, Brazil

Laueite

Formula: 
Mn2+Fe3+2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Hardness: 
3.0
Streak: 
White
Type Locality: 
Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Hagendorf, Waidhaus, Upper Palatinate, Bavaria, Germany