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Marcasite With Sphalerite & Baryte

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PCZ197750

Marcasite With Sphalerite & Baryte

Description Tabs

Description
Locality: 
Hampstead Farm Quarry, Chipping Sodbury, Gloucestershire, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5 × 4.5 cm
Description

A base layer of barite is covered by wavy alternating bands of sphalerite (dark) and marcasite. An unusual but not unattractive specimen from an infrequently offered locality.

Mineral Data
What's on the rock

Marcasite

Formula: 
FeS2
Strunz: 
2.EB.10a
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White
Peter Crozier Minerals