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Tourmaline

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MNT642759

Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Luc Yen Mine, Lục Yên District, Yên Bái Province, Vietnam
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.7 × 0.7 × 0.6 cm
Description

Specimens from Vietnam are not really abundant. This nice pinkish-brownish tourmaline crystal comes out of the collection of german mineralogist and former head of the Institute of Geosciences of the Mainz Gutenberg University Prof. Dr. D. Sc. h.c. Wolfgang Hofmeister. The crystal is short prismatic with rhombohedral and pinacoid termination and is transparent. The composition was not analyzed, it is reported that there are mixed compositions of liddicoatite and elbaite. Probably from Minh Tien pegmatite area.

Mineral Data
What's on the rock

Tourmaline

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

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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