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Metaswitzerite With Vivianite

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QRI929398

Metaswitzerite With Vivianite

Rare Mineral

Description Tabs

Description
Locality: 
US Route #7 Expressway (Danbury line), Brookfield, Fairfield County, Connecticut, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.5 × 1.7 cm
Weight: 
19.00gr
Description

Bright dark brown metaswitzerite crystals associated to dark blue vivianite blades laid on pale matrix. Excellent color contrast.

From my systematic suite. Rare material to spot on the market, found in a British collection in 2018.

Mineral Data
What's on the rock

Metaswitzerite

Formula: 
Mn3(PO4)2·4H2O
Strunz: 
8.CE.25
Hardness: 
2.5
Streak: 
White
Type Locality: 
Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA

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

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