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Aragonite With Calcite

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PCZ187797

Aragonite With Calcite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 5.3 × 5 cm
Description

This specimen fascinates me. The white aragonite crystals all protrude from the contrasting yellow calcite parallel to each other, and perpendicular to the plane of the calcite crystals. A highly unusual and in my opinion aesthetic display.

Mineral Data
What's on the rock

Aragonite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.15
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Type Locality: 
Gallo river, Molina de Aragón, Guadalajara, Castile-La Mancha, Spain

Calcite

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