@article{fdi:010061762,
  title = {{U}pdate on gemstone mining in {L}uc {Y}en, {V}ietnam},
  author = {{L}ong, {P}. {V}. and {P}ardieu, {V}. and {G}iuliani, {G}aston},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n 1987, gems were discovered in the {L}uc {Y}en area of {V}ietnam's {Y}en {B}ai province. {R}uby, sapphire, and spinel from primary and secondary deposits are the most valuable of these; tourmaline, gem-quality feldspar, pargasite, and humite are also mined there. {A}s a result of this discovery, the {L}uc {Y}en district has become {V}ietnam's most important gemstone-trading center over the past 30 years. {T}he markets of {Y}en {T}he, the capital of {L}uc {Y}en, offer an additional assortment of natural gems from {V}ietnam and elsewhere (including peridot, beryl, aquamarine, topaz, and quartz); synthetic gems are also found in these markets.},
  keywords = {{VIETNAM}},
  booktitle = {},
  journal = {{G}ems and {G}emology},
  volume = {49},
  numero = {4},
  pages = {233--245},
  ISSN = {0016-626{X}},
  year = {2013},
  DOI = {10.5741/gems.49.4.233},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061762},
}