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Jahnsite-(MnMnMg) & Mitridatite

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SER746004

Jahnsite-(MnMnMg) & Mitridatite

Type Locality

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.1 × 2.1 cm
Description

a vug filled with yellow jahnsite crystals and green mitridatite on frondelite ; I discovered this new jahnsite in Sapucaia's dump on 2011 and was analysed by Pietro Vignola in Milan on 2018; very hard to find now because the dump is covered by vegetation and it is strickly proibited to enter the mine

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

Mitridatite

Formula: 
Ca2Fe3+3(PO4)3O2·3H2O
Strunz: 
8.DH.30
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Kamysh-Burun Trough, Kerchenskoe deposit, Kerchenskyi (Fe)-ore basin, Kerch peninsula (Kertch peninsula), Crimea peninsula, Crimea Oblast', Ukraine...