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Kaolinite & Orthoclase

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ESM514813

Kaolinite & Orthoclase

Description Tabs

Description
Locality: 
St Austell District, Cornwall, United Kingdom
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
0.6 × 2.7 × 1.7 cm
Description

Sharp doubly terminated Carlsbad-twinned orthoclase crystal 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