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Chalcophyllite

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MGR721558

Chalcophyllite

Rare Mineral

Description Tabs

Description
Locality: 
Rancagua, Cachapoal Province, O'Higgins Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.2 × 6.6 × 4.7 cm
Description

A rare sample of chalcophyllite from Chile. Chalcophyllite developed botryoidal aggregates in intense green color. It formed exposed groups and shows good contrast. Will come with labels from "Kristalle", Wilke and ex- Bideaux collection.

Mineral Data
What's on the rock

Chalcophyllite

Formula: 
Cu18Al2(SO4)3(AsO4)3(OH)27·33H2O
Strunz: 
8.DF.30
Crystal System: 
Trigonal
Hardness: 
2.0