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Aragonite & Opal

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RBM1025910

Aragonite & Opal

Description Tabs

Description
Locality: 
Santa Eulalia, Aquiles Serdán Municipality, Chihuahua, Mexico
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10.5 × 7.5 × 3.5 cm
Description

Dozens of semi-spherical groups of aragonite. The aragonite is accompanied by hyalite opal, and when the piece is exposed to SW UV light, it does glow a green color.

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

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Streak: 
White

Seller Information

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