Fluor-schorl, a new member of the tourmaline supergroup, and new data on schorl from the cotype localities [PDF]
European Journal of Mineralogy, 2016 Fluor-schorl, NaFe^(2+) _3Al_6Si_6O_(18)(BO_3)_3(OH)_3F, is a new mineral species of the tourmaline supergroup from alluvial tin deposits near Steinberg, Zschorlau, Erzgebirge (Saxonian Ore Mountains), Saxony, Germany, and from pegmatites near Grasstein (
Dyar, M. Darby +11 more
core +4 more sources
Mineralogy and distribution of critical elements in the Sn–W–Pb–Ag–Zn Huanuni deposit, Bolivia [PDF]
, 2019 The polymetallic Huanuni deposit, a world-class tin deposit, is part of the Bolivian tin belt. As a likely case for a “mesothermal” or transitional deposit between epithermal and porphyry Sn types (or shallow porphyry Sn), it represents a case that ...
Alfonso, Pura +12 more
core +2 more sources
Geochemistry of granitic aplite-pegmatite sills and petrogenetic links with granites, Guarda-Belmonte area, central Portugal [PDF]
, 2010 Granitic amblygonite-subtype and lepidolite-subtype, aplite-pegmatite sills intruded a biotite>muscovite granite (G1). Two other biotite>muscovite granites (G2 and G3) and a muscovite>biotite granite (G4) crop out in the area.
Neiva, A.M.R., Ramos, João Farinha
core +1 more source
Discriminating fluid source regions in orogenic gold deposits using B-isotopes [PDF]
, 2016 The genesis of orogenic gold deposits is commonly linked to hydrothermal ore fluids derived from metamorphic devolatilization reactions. However, there is considerable debate as to the ultimate source of these fluids and the metals they transport ...
Lambert-Smith, James +3 more
core +1 more source
Schorl-1A from Langesundsfjord (Norway)
Journal of Geosciences, 2022 A crystal fragment of schorl from Langesundsfjord (Norway), showing a zonation with a biaxial optic behavior in the rim, was studied by electron microprobe analysis, single-crystal X-ray diffraction, Mössbauer, infrared and optical absorption spectroscopy and optical measurements. Measured 2Vx is 15.6°.
CAMARA, FERNANDO +5 more
openaire +3 more sources
, 2020 Degradation of a Basic Blue 41 dye using Fenton reagent was examined at laboratory scale in batch experiments using Box-Behnken statistical experiment design.
Kiflie, Zebene +2 more
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Tourmaline-quartz-cassiterite mineralization of the Land's End Granite at Nanjizal, west Cornwall [PDF]
, 2013 Nanjizal is one of the few locations in the southern segment of the Land's End Granite (Early Permian) where magmatic-hydrothermal tin mineralization has been worked. Three principal mineralization episodes are recognized.
Bromley, A.V. +5 more
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Pegmatites of Southern California [PDF]
, 1954 For many years the southern California region has attracted the attention of geologists interested in pegmatites and pegmatite deposits, largely because of the well-known gem and lithium occurrences in San Diego and Riverside Counties. These world-famous
Jahns, Richard H.
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The petrogenetic meaning of schorl-dravite transition and apatite association in periamphibolitic tourmalinites – Northern Portugal [PDF]
, 2010 Publicado em "Acta Mineralogica-Petrographica.
Dias, Patrícia Sofia Alves +1 more
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Structural and paragenetic analysis of swarms of bubble like pegmatites in a miarolitic granite from Assunção South – Viseu – Central Portugal [PDF]
, 2013 Publicado em "PEG 2013 : Contributions to The 6th International Symposium on Granitic ...
Araújo, Pedro P. +7 more
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