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Melanophlogite & Native Sulphur

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MNT101218

Melanophlogite & Native Sulphur

ex Krantz, no old label
Classic Locality

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Description
Locality: 
Agrigento, Agrigento Province, Sicily, Italy
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.5 × 1.8 cm
Description

19th century classic from Sicily: the rare semiorganic cubic silica mineral melanophlogite forms small crystals and brown aggregates in a carbonate vug between native sulphur crystals. Ex Krantz, no old label. Rare material.

Mineral Data
What's on the rock

Melanophlogite

Formula: 
46SiO2·6(N2,CO2)·2(CH4,N2)
Strunz: 
4.DA.25
Crystal System: 
Tetragonal
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Giona Mine, Milena, Caltanissetta Province, Sicily, Italy

Sulphur

Formula: 
S8
Strunz: 
1.CC.05
Crystal System: 
Orthorhombic
Hardness: 
1.5 - 2.5

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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