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Pyrolusite

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MNT134721

Pyrolusite

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

Description Tabs

Description
Locality: 
Miguel Burnier, Ouro Preto, Minas Gerais, Brazil
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4.5 × 4.7 cm
Description

I am not 100% sure about the provenance of this specimen although it comes with 2 labels: a mass of earthy to crystallized manganese oxides obviously pseudomorphing scalenohedral calcite crystals host shiny needles of pyrolusite. According to the label this interesting specimen comes from Miguel Burnier, Brazil. I was not able to find more information about specimens of this kind from there up to now.

Mineral Data
What's on the rock

Pyrolusite

Formula: 
MnO2
Strunz: 
4.DB.05
Hardness: 
2.0 - 6.5

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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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