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Calcite Psm Aragonite Sulphur

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PDM1084052

Description Tabs

Description
Locality: 
Agrigento, Agrigento Province, Sicily, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
13.6 × 11.4 × 5.7 cm
Weight: 
529.00gr
Description

Big 0.5 Kg group of twinned pseudohexagonal crystals of aragonite that have been completely replaced by transparent calcite and minor yellow sulphur. Intense fuchsia fluorescence under long UV waves and pale pink under short UV waves.

Acquired in 10/02/1990. Ex Gustaaf collection #784, with his handwritten label.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Calcite

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

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

Sulphur

Formula: 
S8
Strunz: 
1.CC.05
Crystal System: 
Orthorhombic
Hardness: 
1.5 - 2.5

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