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Ushkovite & Jahnsite-(NaMnMg)

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JYJ838530

Ushkovite & Jahnsite-(NaMnMg)

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.1 × 1.1 cm
Description

SEM-EDS no 2480-82 confirmed ushkovite and jahnsite-(NaMnMg) (bright yellow) on matrix from the Sapucaia mine, Brazil. 

 

Mineral Data
What's on the rock

Ushkovite

Formula: 
MgFe3+2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Crystal System: 
Triclinic
Hardness: 
3.5
Type Locality: 
Pit No. 232, Bol'shoi Tatkul' Lake, Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Jahnsite-(NaMnMg)

Formula: 
{(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O
Strunz: 
8.DH.15
Crystal System: 
Monoclinic
Type Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Analysis
Analysis Report - only: Ushkovite & Jahnsite-(NaMnMg)
Analysis Report - only: Ushkovite & Jahnsite-(NaMnMg)
Analysis Report - only: Ushkovite & Jahnsite-(NaMnMg)
Analysis Report - only: Ushkovite & Jahnsite-(NaMnMg)