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Tourmaline Var Dravite

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MNT18446

Tourmaline Var Dravite

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Description
Locality: 
Havredal, Bamble, Vestfold og Telemark, Norway
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.5 × 3.5 cm
Description

Nice example of blackish tourmaline (looks like schorl, is labelled as dravite by Wilke) from a rare locale. In pegmatitic matrix.

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Dravite

Formula: 
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Crystal System: 
Trigonal
Hardness: 
7.0
Type Locality: 
Dobrova, Dravograd (Unterdrauburg), Slovenia

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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