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Calcite Psm Gaylussite

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PDM715377

Calcite Psm Gaylussite

Pseudomorph

Description Tabs

Description
Locality: 
Mono Lake, Mono County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 2.5 × 1.3 cm
Largest Crystal: 
2.70cm
Description

A very aerial, almost a floater piece of spiky gaylussite crystals that have been completely replaced by calcite, a classic pseudomorph from the Mono Lake (California).

Acquired in 1977 by Georges Vanacker*, specimen# V/739.

*Vanackerite (from Tsumeb) is named after him.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Gaylussite

Formula: 
Na2Ca(CO3)2·5H2O
Strunz: 
5.CB.35
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Lagunilla, Mérida, Venezuela

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