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Kaolinite Psm Orthoclase

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PJM131412

Kaolinite Psm Orthoclase

Description Tabs

Description
Locality: 
St Austell District, Cornwall, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3.6 × 1.3 cm
Description

A classic and old-time pseudomorph " Piggs Egg" from the St. Austell District of Cornwall. A sharp, doubly terminated, thin, Carlsbad-twinned orthoclase crystal has been pseudomorphed by kaolinite.

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
Earthstones Australia

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