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Berthierine With Siderite

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DVE110958

Berthierine With Siderite

Ex-David J. Eicher Collection

Description Tabs

Description
Locality: 
South Bay, Scarborough, North Yorkshire, United Kingdom
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.7 × 2.6 cm
Description

Dark green berthierine with brown siderite; an excellent small miniature from an unusual locality.

Mineral Data
What's on the rock

Berthierine

Formula: 
(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4
Strunz: 
9.ED.15
Crystal System: 
Monoclinic, Hexagonal
Hardness: 
2.5
Type Locality: 
Hayange, Meurthe-et-Moselle, Lorraine, France

Siderite

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

Seller Information

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