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Chalcopyrite & Actinolite Var Byssolite

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SCH77023

Chalcopyrite & Actinolite Var Byssolite

Ex. John J. Durkos

Description Tabs

Description
Locality: 
French Creek Mines, St Peters, Chester County, Pennsylvania, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.6 × 4.7 × 2.6 cm
Description

Hoppered greenish-metallic chalcopyrite crystals with fibrous green byssolite variety of actinolite crystals. Ex. John J. Durkos collection.

Mineral Data
What's on the rock

Chalcopyrite

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

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Crystal System: 
Monoclinic - Prismatic
Hardness: 
5.0 - 6.0
Streak: 
White

Byssolite

Variety Of: 

Amphibole Supergroup

Formula: 
AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hardness: 
0.0
Hardness: 
0.0
schani

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