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Spinel

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MNT790745

Spinel

ex Prof. Dr. Wolfgang Hofmeister (GER)
Classic Locality

Description Tabs

Description
Locality: 
Luc Yen Mine, Lục Yên District, Yên Bái Province, Vietnam
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.4 × 5.6 × 4.6 cm
Largest Crystal: 
5.00cm
Weight: 
217.00gr
Description

Spinel specimen of very pale violet colour with some mica dating between 2003 and 2009. From the personal 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. 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

Spinel

Formula: 
MgAl2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
7.5 - 8.0

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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