Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Luc Yen, Yenbai Province (Yen Bai Province), Vietnam

This page is currently not sponsored. Click here to sponsor this page.
 

Detailed Mineral List:


Albite
Formula: Na(AlSi3O8)
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
'Apatite'
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
'Biotite'
Calcite
Formula: CaCO3
Reference: with fluorcannilloite specimens obtained at Luc Yen by Eugeni Bareche
Localities: Recorded from at least 4 other localities in this region.
'Chlorite Group'
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Chondrodite
Formula: (Mg,Fe2+)5(SiO4)2(F,OH)2
Corundum
Formula: Al2O3
Reference: [www.johnbetts-fineminerals.com]
Localities: Recorded from at least 8 other localities in this region.
Corundum var: Ruby
Formula: Al2O3
Reference: [www.johnbetts-fineminerals.com]
Localities: Recorded from at least 7 other localities in this region.
Corundum var: Sapphire
Formula: Al2O3
Reference: Van King
Localities: Recorded from at least 7 other localities in this region.
Danburite
Formula: CaB2Si2O8
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities:
Reported from at least 6 localities in this region.
Edenite
Formula: {Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Localities:
Reported from at least 6 localities in this region.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
'Fayalite-Forsterite Series'
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Fluoro-cannilloite
Formula: {Ca}{Ca2}{Mg4Al}(Al3Si5O22)(F,OH)2
Description: (All "fluor-cannilloite" specimens from here turn out on analysis to be pargasite.)see: http://www.mindat.org/mesg-106-259756.html
Reference: http://www.thearkenstone.com/tuc-china2.html; Eugeni Bareche (2007) An Phu, Luc Yen, Vietnam. Revista de Minerales (Barcelona), 2007/2, 26-29.
Localities: Recorded from at least 1 other locality in this region.
Graphite
Formula: C
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Localities: Recorded from at least 6 other localities in this region.
Humite
Formula: (Mg,Fe2+)7(SiO4)3(F,OH)2
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Localities: Recorded from at least 1 other locality in this region.
'Humite Group'
'Lepidolite'
'Liddicoatite' ?
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Margarite
Formula: CaAl2(Al2Si2O10)(OH)2
Localities:
Reported from at least 6 localities in this region.
Microcline
Formula: K(AlSi3O8)
Microcline var: Amazonite
Formula: K(AlSi3O8)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
'Olivine'
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Orthoclase
Formula: K(AlSi3O8)
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Paragonite
Formula: NaAl2(AlSi3O10)(OH)2
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Pargasite
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Description: Intense green crystals up to 5 cm large in association with red spinel in calcite-dolomite marble (Hauzenberger et al., 2005). Ca = 1.97 apfu, Na+K = 0.72 apfu, F = 0.54 apfu. Full composition: Si 6.34 Ti 0.03 Al 2.38 Cr 0.04 Fe < 0.01 Mn < 0.01 Mg 4.25 Ca 1.97 Na 0.66 K 0.06 ------- F 0.54 Cl < 0.01
Reference: 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; http://www.mindat.org/mesg-7-69925.html
Localities: Recorded from at least 2 other localities in this region.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Localities: Recorded from at least 6 other localities in this region.
Pyrite
Formula: FeS2
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
Localities: Recorded from at least 6 other localities in this region.
Pyrrhotite
Formula: Fe7S8
Reference: with fluorcannilloite specimens obtained at Luc Yen by Eugeni Bareche
Quartz
Formula: SiO2
Quartz var: Smoky Quartz
Formula: SiO2
Rossmanite
Formula: ☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
Rutile
Formula: TiO2
Reference: various correctly added photos
Localities: Recorded from at least 6 other localities in this region.
Sassolite
Formula: H3BO3
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spinel
Formula: MgAl2O4
Reference: Pham Van Long, Gaston Giuliani, Virginie Garnier, Daniel Ohnenstetter (2004) Gemstones in Vietnam. The Australian Gemmologist Volume 22, Number 4, October–December 2004
Localities: Recorded from at least 9 other localities in this region.
Titanite
Formula: CaTi(SiO4)O
Reference: Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Ore Geology Reviews 34, 169-191.
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Pham Van Long, Gaston Giuliani, Virginie Garnier, Daniel Ohnenstetter (2004) Gemstones in Vietnam. The Australian Gemmologist Volume 22, Number 4, October–December 2004
Localities: Recorded from at least 5 other localities in this region.
'Unnamed (Pb-dominant Tourmaline)'
Formula: (Pb,Na)(Li,Al)3Al6(Si6O18)(BO3)3(OH)3(F,OH)

References

Van Long, P., Quang Vinh, H., Garnier, V., Giuliani, G., Ohnenstetter, D., Lhomme, T., Schwarz, D., Fallick, A.E., Dubessy, J. and Trong Trinh, P. (2004): Gem corundum deposits in Vietnam. Journal of Gemmology, 29, 129-142.

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.

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.

Garnier, V., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Banks, D., Vinh, H.Q., Lhomme, T., Maluski, H., Pêcher, A., Bakhsh, K.A., Long, P.V., Trinh, P.T., and Schwarz, D. (2008): Marble-hosted ruby deposits from Central and Southeast Asia: Towards a new genetic model. Ore Geology Reviews 34, 169-191.

Patureau, J. (2011): Un minéralogiste et collectionneur francais á Luc Yen, Vietnam. La Régne Minéral.99, 39-48

Pham Van Long, Vincent Pardieu, and Gaston Giuliani (2013): Update on Gemstone Mining in Luc Yen, Vietnam. Gems & Gemology 49, 233-245.

External Links


Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 18, 2017 16:02:23 Page generated: October 16, 2017 23:46:51
Go to top of page