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Jamesonite Bournonite Quartz Pyrite & Chalcopyrite

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PFK735890

Jamesonite Bournonite Quartz Pyrite & Chalcopyrite

Classic Locality

Description Tabs

Description
Locality: 
Madem-Lakko Mine, Cassandra Mines, Aristotelis, Chalkidiki, Central Macedonia, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.2 × 1.8 cm
Description

Only a few minerals are missing to complete the mineralogy of the mine. The is better in person but it is not aesthetics that matter here. Anyway, it is nice quartz crystal on a little bit of carbonate/sulphide matrix. The quartz is partly covered with iridescent crystals of jamesonite. A few groups of bournonite crystals are present with some minor pyrite and golden chalcopyrite. A carbonate is present too, I am just not sure which one it is. A crazy combo piece of extreme rarity from a classic and closed locality. From my personal collection as all pieces in this auction are!

Mineral Data
What's on the rock

Jamesonite

Formula: 
Pb4FeSb6S14
Strunz: 
2.HB.15
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Cornwall, England, UK

Bournonite

Formula: 
PbCuSbS3
Strunz: 
2.GA.50
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Wadebridge District, Cornwall, England, UK

Quartz

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Chalcopyrite

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

Seller Information

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