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Vivianite Reddingite & Fairfieldite

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SER799263

Vivianite Reddingite & Fairfieldite

Description Tabs

Description
Locality: 
Hagendorf South Pegmatite, Bavaria, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.4 × 1.2 cm
Description

a rich little specimen featuring several blue blades of vivianite on colourless fairfieldite and brown reddingite

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

Reddingite

Formula: 
(Mn2+,Fe2+)3(PO4)2·3H2O
Strunz: 
8.CC.05
Hardness: 
3.5
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA

Fairfieldite

Formula: 
Ca2(Mn2+,Fe2+)(PO4)2·2H2O
Strunz: 
8.CG.05
Hardness: 
3.5
Streak: 
White
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
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