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Crednerite With Paralaurionite

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BSM625609

Crednerite With Paralaurionite

ex Arnold Fisher dealer label

Description Tabs

Description
Locality: 
Merehead Quarry (Torr Works), East Cranmore, Somerset, United Kingdom
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.3 × 5 × 3 cm
Description

A thin manganese oxide matrix encloses a band of brown to off-white radiating acicular calcite crystals which give way to a circular cavity lined with glassycerussite crystals and within which is to be seen a cluster of lustrous black blades of crednerite and a patch of pale lemon yellow microcrystals of paralaurionite. Alsopresent are a couple of small sprays of rich green malachite crystals.

The specimen carries a glued number 1248 and the label a different number 1227 possibly suggesting two different collections, especially since the styles of the numbering are significantly different.

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

Crednerite

Formula: 
CuMnO2
Strunz: 
4.AB.05
Crystal System: 
Monoclinic
Hardness: 
4.0
Colour: 
Black
Type Locality: 
Glücksstern Mine, Gottlob Hill, Friedrichroda, Thuringian Forest, Thuringia, Germany

Paralaurionite

Formula: 
PbCl(OH)
Strunz: 
3.DC.05
Hardness: 
3.0
Type Locality: 
Lavrion District slag localities, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

Seller Information

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