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Gordonite & Jahnsite

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SER142858

Gordonite & Jahnsite

Description Tabs

Description
Locality: 
Sapucaia Mine, Sapucaia do Norte, Galiléia, Minas Gerais, Brazil
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 2 cm
Description

Two vugs containing colourless, prismatic gordonite crystals with yellow jahnsite and minor strengite

Mineral Data
What's on the rock

Gordonite

Formula: 
MgAl2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Hardness: 
3.5
Streak: 
White
Type Locality: 
Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA

Jahnsite

Synonym Of: 

Jahnsite-(CaMnFe)

Formula: 
{Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

Jahnsite-(CaMnMg)

Formula: 
{Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

Jahnsite-(CaMnMn)

Formula: 
{Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

Jahnsite-(MnMnMn)

Formula: 
{Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0