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Arsenopyrite With Sphalerite & Quartz

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BMM601511

Arsenopyrite With Sphalerite & Quartz

Description Tabs

Description
Locality: 
Olympiada Mine, Cassandra Mines, Aristotelis, Chalkidiki, Central Macedonia, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 3.5 cm
Description

Sharp terminated highly lustrous group of silver-gray lustrous arsenopyrite crystals partially covered with grayish quartz crystals. It is interesting, that there are some black sphalerite crystals between the arsenopyrites. This nice specimen comes from an old classic locality that produced the finest arsenopyrite in Greece. A wonderful piece all in all.

Mineral Data
What's on the rock

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White