Mindat Logo

Luc Yen, Yenbai (Yen Bai) Province, Vietnam

The recent finds of fluor-cannilloite from "Yuang Yang (Yueng Yang), Wenshan, Yunnan Province, China" are really from this locality.
Yuang Yang is in fact a small city in Yunnan Province where mineral dealers frequently offer Vietnamese specimens.

There are numerous quarries spread along a 12 km line in this area, all generally labelled "Luc Yen", athough some should probably be renamed.

NOTE: Some of the "paragasites" from here may be fluor-cannilloites
(see http://www.mindat.org/mesg-7-69925.html). Nonetheless, Hauzenberger et al. (2005) report intense green pargasite in association with red spinel from Luc Yen. This pargasite has been confirmed by EPMA and single-crystal XRD.

References:
- Eugeni Bareche (2007) An Phu, Luc Yen, Vietnam. Revista de Minerales (Barcelona), 2007/2, 26-29.
- Tamagnini, F. (2007). Tormaline policrome in Vietnam. Un nuovo ritrovamento nei pressi di Luc Yen. Rivista Mineralogica Italiana, 31 (2), 104-107.
- 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 workschop on gem-materials and modern analytical methods. Hanoi, Vietnam. 3-8.
- www.ruby-sapphire.com/vietnamese_rubies.htm




Mineral list contains contents from all localities listed at bottom of page


Mineral List:
  • Albite
    var: Cleavelandite
  • Calcite
  • Chondrodite
  • Corundum
       var: Ruby
  • Danburite
  • Elbaite
  • Fluor-cannilloite
  • Humite
  • Lepidolite
  • Liddicoatite ?
  • Microcline
    var: Amazonite
  • Muscovite
  • Pargasite
  • Pyrrhotite
  • Quartz
    var: Smoky Quartz
  • Rossmanite
  • Spinel


    18 entries listed. 13 valid minerals.

    Localities in this Region:
    Vietnam
     
    • Yenbai (Yen Bai) Province
      • Luc Yen
    Vietnam
     
    • Yenbai (Yen Bai) Province
      • Luc Yen
        • An Phu

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
    This page is currently not sponsored. Click here to find out how you can sponsor this page.


    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.