Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Philippe M. Belley"'
Autor:
Philippe M. Belley
Publikováno v:
The Canadian Journal of Mineralogy and Petrology. 61:61-85
A new, comprehensive approach to characterizing detrital corundum in sediments and placer deposits is outlined and applied to a sample of poorly sorted, mud-supported colluvium rich in rhyolite tuff clasts from the sapphire-producing layer at Gem Mou
Publikováno v:
The Journal of Gemmology. 37:80-90
Publikováno v:
Lithos. :106992
Autor:
Lee A. Groat, Philippe M. Belley
Publikováno v:
The Canadian Mineralogist. 57:147-200
Autor:
Lee A. Groat, Tashia J. Dzikowski, Andrew Fagan, Mostafa Fayek, Philippe M. Belley, Gaston Giuliani, Paul Gertzbein, Jan Cempírek, James K. Mortensen, Anthony E. Fallick
Publikováno v:
The Canadian Mineralogist. 55:669-699
Gem-quality corundum (sapphire) occurs in scapolite-rich calc-silicate rock hosted in marble of the Lake Harbour Group near Kimmirut, southern Baffin Island. A deposit of blue and colorless gem corundum (Beluga occurrence) is compared to a similar ca
Publikováno v:
The Canadian Mineralogist. 55:787-797
Baffin Island (Nunavut, Canada) is located in the remote arctic where geological exposure is high, terrain is expansive, and field seasons are short. Metacarbonates in the Lake Harbour Group, southern Baffin Island, are considered to be prospective f
Publikováno v:
Rocks & Minerals. 91:558-569
Skarns and calcite veins of the Central Metasedimentary Belt, Grenville Geological Province, are famous for their abundance of interesting and well-formed minerals, often occurring in large crystal...
Publikováno v:
Rocks & Minerals. 91:448-452
The Parker mine in Notre-Dame-du-Laus, Quebec, is well known among collectors for having produced substantial amounts of well-formed, lustrous black spinel crystals (rarely up to 6 cm) associated w...
Autor:
Lee A. Groat, Philippe M. Belley
Publikováno v:
Ore Geology Reviews. 116:103259
Baffin Island's Lake Harbour Group (LHG), a Paleoproterozoic granulite facies metasedimentary sequence rich in carbonates, contains occurrences of the gemstones sapphire (corundum), spinel (including vivid blue, cobalt-enriched spinel), and lapis laz
Autor:
Lee A. Groat, Philippe M. Belley
Publikováno v:
Geological Society of America Abstracts with Programs.