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Witherite

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PDM647792

Witherite

Classic Locality

Description Tabs

Description
Locality: 
Nentsberry Haggs Mine, Alston Moor, Cumbria, United Kingdom
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 4 cm
Description

Aggregate of parallelly growth yellow coloured crystals of witherite with a white layer of baryte on the surface a white of and pale cream with a low development of prim faces. The crystals are prismatic, pseudohexagonal due to twinning on {110}. A good representative specimen for the locality. Yellow fluorescent under long UV illumination.

Ex. Pit Van Hal collection.

 

Mineral Data
What's on the rock

Witherite

Formula: 
BaCO3
Strunz: 
5.AB.15
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Streak: 
White
Type Locality: 
Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK

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