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Ludlamite & Siderite

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NST661825

Ludlamite & Siderite

Description Tabs

Description
Locality: 
Cabeça do Cachorro Claim, São Gabriel da Cachoeira, Amazonas, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 0.5 × 0.4 cm
Description

A thumbnail of Ludlamite on Siderite matrix from Brazil.

Mineral Data
What's on the rock

Ludlamite

Formula: 
(Fe,Mn,Mg)3(PO4)2·4H2O
Strunz: 
8.CD.20
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
Wheal Jane (Falmouth Consolidated Mines), Baldhu, Kea, Camborne - Redruth - St Day District, Cornwall, England, UK

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White