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Rittmannite & Kingsmountite

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SER856268

Rittmannite & Kingsmountite

Type Locality

Description Tabs

Description
Locality: 
Regada, Mangualde, Viseu District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.5 × 1.5 cm
Description

some tiny yellow rittmannite crystals with a tuft of white kingsmountite from the type locality of rittmannite ; self collected on 2008

Mineral Data
What's on the rock

Rittmannite

Formula: 
{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
3.5
Type Locality: 
Cubos-Mesquitela-Mangualde area, Mangualde, Viseu District, Portugal

Kingsmountite

Formula: 
Ca4(Fe2+,Mn2+)Al4(PO4)6(OH)4·12H2O
Strunz: 
8.DH.25
Hardness: 
2.5
Streak: 
White
Type Locality: 
Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA