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Baryte Psm Barytocalcite With Galena Sphalerite & Quartz

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PCZ183722

Baryte Psm Barytocalcite With Galena Sphalerite & Quartz

Description Tabs

Description
Locality: 
Rampgill Mine, Nenthead, Cumbria, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 5 × 3.5 cm
Description

This specimen from a classic British locality is a virtual 'Treasure trove" of species. Baryte pseudomorphing barytocalcite, galena, sphalerite, quartz (tending to citrine) and hydrozincite.

Mineral Data
What's on the rock

Baryte

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

Barytocalcite

Formula: 
BaCa(CO3)2
Strunz: 
5.AB.45
Crystal System: 
Monoclinic
Hardness: 
4.0
Streak: 
White
Type Locality: 
Blagill Mine, Nent Valley, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Sphalerite

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
Peter Crozier Minerals