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Orthoclase Psm Leucite

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RBR1053977

Description Tabs

Description
Locality: 
Loučná pod Klinovcem, Chomutov District, Ústí nad Labem Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 8.5 × 8 cm
Description

Orthoclase pseudomorph after leucite pseudo-icosahedrons are something very special in the mineral world. A small location in Czech Republic produced some of the finest specimens of this kind. This specimen shows some well-developed pseudomorphs on matrix, the quality is much above average.

Mineral Data
What's on the rock

Orthoclase

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

Leucite

Formula: 
K(AlSi2O6)
Strunz: 
9.GB.05
Hardness: 
5.5 - 6.0
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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