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Kaolinite Psm Orthoclase Carlsbad Twin

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PDM710451

Kaolinite Psm Orthoclase Carlsbad Twin

Pseudomorph

Description Tabs

Description
Locality: 
Melbur China Clay Pit, St Stephen-in-Brannel, Cornwall, United Kingdom
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.4 × 0.9 cm
Description

A floater, tabular, Carlsbad-twinned orthoclase group pseudomorphed by white kaolinite.

Classic Cornish choice material from the P. Van Hal collection.

Mineral Data
What's on the rock

Kaolinite

Formula: 
Al2(Si2O5)(OH)4
Strunz: 
9.ED.05
Hardness: 
2.0 - 2.5
Type Locality: 
Gaoling Mine (Kauling Mine), Gaoling village, Ehu town, Fuliang Co., Jingdezhen Prefecture, Jiangxi Province, China

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0
Streak: 
White

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