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Penfieldite

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UVM806163

Penfieldite

Charles Trantham Estate (1936-2020)
Rare Mineral

Description Tabs

Description
Locality: 
Margarita Mine, Caracoles, Sierra Gorda, Antofagasta Province, Antofagasta Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 2.6 × 1.2 cm
Description

Sharp tapering crystals of penfieldite on matrix, associated with pseudoboleite and more flat lying crystals of penfieldite.   From the Margarita Mine, the locality that has produced the world's best penfieldite and some of the only non-slag specimens.

From the estate of noted California collector and dealer Charles Trantham.

Mineral Data
What's on the rock

Penfieldite

Formula: 
Pb2Cl3(OH)
Strunz: 
3.DC.15
Hardness: 
3.0 - 4.0
Type Locality: 
Lavrion District slag localities, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

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