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Vivianite & Metavivianite

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MNT41671

Vivianite & Metavivianite

Classic Locality

Description Tabs

Description
Locality: 
Kerch Peninsula, Crimea, Ukraine
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 2.5 × 0.9 cm
Description

A nice miniature example of vivianite/metavivianite from the famous Kertsch (Kerc) iron ore deposits on the Krim peninsula. Bluish-blackish radial sprays settle on a limonite ore matrix. Increasingly rare material from the 1980s.

Mineral Data
What's on the rock

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

Metavivianite

Formula: 
Fe2+Fe3+2(PO4)2(OH)2·6H2O
Strunz: 
8.DC.25
Hardness: 
1.5 - 2.0
Type Locality: 
Big Chief Mine (Johnson pegmatite), Glendale, Keystone District, Pennington Co., South Dakota, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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