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Ludlamite & Vivianite

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SER754437

Ludlamite & Vivianite

Description Tabs

Description
Locality: 
Cabeça do Cachorro Claim, São Gabriel da Cachoeira, Amazonas, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
15.1 × 8.1 × 7.1 cm
Description

a large and heavy specimen featuring a good blue vivianite crystal with dozen of apple green ludlamite crystals

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

Vivianite

Formula: 
Fe2+3(PO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Type Locality: 
Wheal Kind (Wheal Kine), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK