Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Tourmaline

Views:
Watches:
MNT640702

Tourmaline

ex Prof. Dr. Wolfgang Hofmeister (GER)

Description Tabs

Description
Locality: 
Luc Yen Mine, Lục Yên District, Yên Bái Province, Vietnam
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 2.5 × 2.1 cm
Description

Specimens from Vietnam are not really abundant. This very nice dark pinkish tourmaline crystal (aggregate) 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 terminations and in very good condition. The composition was not analyzed, it is reported that there are mixed compositions of liddicoatite and elbaite. Probably from Minh Tien pegmatite.

Wolfgang Hofmeister brought this specimen from one of his numerous trips to gem stone occurrences worldwide and has published on this occurences as well. See for instance: Hauzenberger, Ch.A., Walter, F., Hofmeister, W., Phan Tien, D. & Kienzl, N. (2005): Mineralogical, petrological and crystallographic investigations of two amphiboles from ruby and spinel bearing marbles, Luc Yen, Province Yen Bai, Vietnam. In: Hofmeister, W. et al. (ed): Proceedings of the third international workshop on gem-materials and modern analytical methods. Hanoi, Vietnam. 3-8.

Mineral Data
What's on the rock

Tourmaline

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

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