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Helvine

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MNT18798

Helvine

Ex H-J Wilke (Germany)
Classic Locality

Description Tabs

Description
Locality: 
Hørtekollen Mine, Sylling, Lier, Viken, Norway
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.5 × 2.5 cm
Description

Nice and rich specimen with orange brown partly well developed helvite crystals on and in matrix. The site is closed for collecting, protected as geological heritage.

Hard to get stuff, ex H.J. Wilke.

Mineral Data
What's on the rock

Helvine

Formula: 
Mn2+4(Be3Si3O12)S
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Friedefürst Mine, Breitenbrunn, Breitenbrunn District, Erzgebirge, Saxony, Germany

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