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Matulaite & Rockbridgeite

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CHP909666

Matulaite & Rockbridgeite

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Description
Locality: 
Cerdeirinha Mine, Arga de Baixo, Caminha, Viana do Castelo District, Portugal
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.2 × 1.8 cm
Description

specimen with many very nice white tiny crystalline balls of matulaite with associate black tiny crystals of rockbridgeite.

c. 4189

Mineral Data
What's on the rock

Matulaite

Formula: 
(Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8·8H2O
Strunz: 
8.DK.30
Hardness: 
1.0
Type Locality: 
Bachman Mine, Hellertown, Lower Saucon Township, Northampton Co., Pennsylvania, USA

Rockbridgeite

Formula: 
Fe2+Fe3+4(PO4)3(OH)5
Strunz: 
8.BC.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Type Locality: 
Midvale Mine, South Mountain, Midvale, Rockbridge Co., Virginia, USA

Seller Information

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