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Pharmacosiderite

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BCK817085

Pharmacosiderite

Dan Behnke collection
Classic Locality

Description Tabs

Description
Locality: 
Gwennap, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.1 × 1.9 cm
Description

You are bidding on a very rich sample with thousands of green pharmacosiderite crystals on matrix. Comes with original collection index card. 

This sample is from the collection of Dan Behnke, long-time friend, micromounter and prodigious photographer. I am pleased to be able to offer selections from his large collection, many of which are illustrated specimens in Rocks & Minerals, The Mineralogiocal Record, Photo Atlas of Minerals and many other publications. All samples from his meticulously catalogued collection will come with his original index card with all notes, photography annotations and other pertinent information, as well as any slides Dan may have taken of the sample with publication notes and date the photo was made.

Mineral Data
What's on the rock

Pharmacosiderite

Formula: 
KFe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
2.5
Streak: 
white
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Seller Information

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