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Alstonite

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CHP824870

Alstonite

Classic Locality

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Description
Locality: 
Fallowfield Mine, Acomb, Northumberland, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.5 × 4 cm
Weight: 
200.00gr
Description

specimen with some vey good brownish-yellow crystals of alstonite on matrix.

c. 876

Mineral Data
What's on the rock

Alstonite

Formula: 
BaCa(CO3)2
Strunz: 
5.AB.35
Crystal System: 
Triclinic
Hardness: 
4.0 - 4.5
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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