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Calcite & Copper

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MNT679056

Calcite & Copper

ex Eugen Kreidler, GER; ex Roger Lang pers. coll.
Classic Locality

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Description
Locality: 
Keweenaw, Michigan, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.2 × 2.4 cm
Description

Old time classic from Keweenaw peninsula, Michigan: a small specimen af aggregated calcite crystals in part heavily loaded with native copper from the Kreidler collection. Most probably from the Quincy or the Phoenix Mine. Very good condition, no significant damage to report, has been in my personal collection during the last few years. Ex Kreidler collection.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Aragonite and Vaterite
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Copper

Formula: 
Cu
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

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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