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Varlamoffite With Libethenite

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BSM667587

Varlamoffite With Libethenite

ex Jim Goulding Collection #58

Description Tabs

Description
Locality: 
Gunheath Pit, St Austell, Cornwall, United Kingdom
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
1.6 × 6.5 × 4.1 cm
Description

Fine grained granite matrix with a development of unusally greenish botryoidal and honeycomb surface covering of varlamoffite. Close inspection with a microscope reveals a few minute olive green libethenite crystals.

No Labels - details from catalogue
Mineral Data
What's on the rock

Varlamoffite

Formula: 
(Sn,Fe)(O,OH)2
Strunz: 
4.DB.05
Hardness: 
6 - 6.5
Colour: 
Yellow
Streak: 
Light Yellow
Type Locality: 
Kalima, Maniema, Democratic Republic of Congo (Zaïre)

Libethenite

Formula: 
Cu2(PO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Podlipa deposit, Ľubietová (Libetbánya; Libethen), Banská Bystrica Co., Banská Bystrica Region, Slovakia

Seller Information

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