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Vivianite With Ludlamite & Siderite

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TBM1037650

Vivianite With Ludlamite & Siderite

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Description Tabs

Description
Locality: 
Cabeça do Cachorro Claim, São Gabriel da Cachoeira, Amazonas, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 2 cm
Largest Crystal: 
1.50cm
Weight: 
26.00gr
Description

Nice blue-green watercolor Vivianite crystals cluster up to 15 mm  with nice green  Ludlamite crystal up to 9 mm on Siderite matrix

Mineral Data
What's on the rock

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

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