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Cordierite

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MNT151507

Cordierite

ex Dr. A. Krantz (GER), ex?
Classic Locality

Description Tabs

Description
Locality: 
Silberberg Mine, Bodenmais, Lower Bavaria, Bavaria, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4 × 2.4 cm
Description

A mid 1800s old timer from Dr. August Krantz with two old labels: blueish grey glassy lustrous cordierite in a sulfide bearing matrix from this classic locality, an iron sulphide deposit in cordierite-garnet gneiss disseminated by quartz veins. The deposit has been worked for hundreds of yeares and was abandoned in 1962. Today it is a visitors mine.

Mineral Data
What's on the rock

Cordierite

Formula: 
(Mg,Fe)2Al3(AlSi5O18)
Strunz: 
9.CJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Type Locality: 
Großer Arber, Bayerisch Eisenstein, Lower Bavaria, Bavaria, Germany

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