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Sphalerite Chalcopyrite & Marcasite

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MNT637978

Sphalerite Chalcopyrite & Marcasite

Classic Locality

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Description
Locality: 
Treece, Picher Field, Cherokee County, Kansas, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 6.4 × 4.5 cm
Description

Nice example - probably 1970s - with dark brown sphalerite crystals on brown sparry massive crystalline sphalerite hosting golden brassy chalcopyrite crystals which are for the most part epitaxial grown on the sphalerite. On top numerous small but well developed marcasite crystals and a few small calcite bits.

Mineral Data
What's on the rock

Sphalerite

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

Chalcopyrite

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

Marcasite

Formula: 
FeS2
Strunz: 
2.EB.10a
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5

Seller Information

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Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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