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Santabarbaraite Vivianite & Gypsum

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MNT134779

Santabarbaraite Vivianite & Gypsum

ex Dr. Krantz (GER) - no old label
Classic Locality

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Description
Locality: 
Kerch Peninsula, Crimea, Ukraine
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 2 cm
Description

Fossil clam shell with vivianite altered to brownish santabarbaraite inside and clear crystals of gypsum from Kertch. Old timer from Krantz from the late 19th/early 20th century but without old label.

Mineral Data
What's on the rock

Santabarbaraite

Formula: 
Fe3+3(PO4)2(OH)3·5H2O
Strunz: 
8.CE.80
Hardness: 
0.0
Type Locality: 
Santa Barbara lignite District, Cavriglia, Valdarno (Val d'Arno), Arezzo Province, Tuscany, Italy...

Vivianite

Formula: 
Fe2+3(PO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Type Locality: 
Wheal Kind (Wheal Kine), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

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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