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Chalcopyrite On Apophyllite

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PCZ756530

Chalcopyrite On Apophyllite

Description Tabs

Description
Locality: 
Sabinas Mine, San Martín, Sombrerete Municipality, Zacatecas, Mexico
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 6 × 3 cm
Description

One that has been in my own collection for the past 18 years. An attractive specimen of chalcopyrite, showing some iridesence, on numerous reflective apophyllite crystals. Difficult to photograph and much nicer in person. 

Mineral Data
What's on the rock

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0
Peter Crozier Minerals