Results 81 to 90 of about 3,717 (223)
Skarn à idocrase, grossulaire et scheelite de Plougoulm (Finistère, France)
, 1978 Metasomatic alteration of an intra-gneissic pyroxenite into a skarn with vesuvianite, grossular and scheelite under the probable influence of aplito-pegmatitic veins.Transformation métasomatique d'une pyroxénite intra-gneissique en skarn à idocrase ...
Corre, Yvon +3 more
core +1 more source
Application Of Hallimond Tube For The Flotability Study Of Pure Scheelite [PDF]
, 2022 Scheelite one of the sources for occurrence of tungsten, commonly coexists best in ore deposits with other gangue minerals such as calcite that have the same active Ca-atoms. The study of flotation was carried out via Hallimond Tube to separate scheelite
Zamri, Nur Hazwani
core
Sustainable Ceramic Membranes from Clays and Mining Wastes by Rapid Sintering Process [PDF]
Materials ResearchThis study characterized wastes from scheelite and columbite-tantalite mining, as well as kaolin processing, to produce microfiltration membranes for wastewater treatment using a fast-sintered process.
Hellen C. T. Firmino +7 more
doaj +1 more source
NQR and Neutron Diffraction in Scheelites
Zeitschrift für Naturforschung A, 1992 Abstract Measurements of the spin-lattice relaxation time for rhenium in KReO4 and NH4ReO4 are reported; relaxation rates are extremely fast due to the large quadrupole moment of Re. Calculations of the electric field gradient in KReO4 show that the EFG is a very sensitive function of the orientation of the anion in the unit cell as well
R. Julian C. Brown +4 more
openaire +1 more source
Photographed by Ron Wolf.Glassy orange-brown scheelite on matrix of grey-white mineral ...
Wolf, Ron
core +1 more source
Improving Scheelite Recovery from Gold Tailings [PDF]
, 1985 Tungsten occupies a very important place amongst the strategic metals. However, resources available in India are scarce and lean in grade. Various physical methods of beneficiation have been tried to beneficiate such, low grade ores, but these ...
Subrahmanyam, N P +5 more
core +1 more source
Application of a Superplasticizer in Scheelite Selective Flotation from Calcite
, 2022 The superplasticizer sulfonated acetone formaldehyde condensate (SAF) was first used as a depressant in the selective flotation of scheelite and calcite in this paper.
Dongfang Lu +4 more
core +1 more source
BaWO4:Ce Single Crystals Codoped with Na Ions
Crystals, 2019 Single crystals of BaWO4, BaWO4: 0.5 at. % Ce; BaWO4: 1 at. % Ce; BaWO4: 0.5 at. % Ce, 1 at. % Na; and BaWO4: 1 at. % Ce, 2 at. % Na were grown from an inductively heated iridium crucible by the Czochralski method on a Malvern MSR4 puller.
Slawomir M. Kaczmarek +9 more
doaj +1 more source
Experimental study of hydrothermal transformations scheelite ⇌ ferberite : preliminary results
, 1985 Tungsten minerals scheelite CaWO4 and ferberite FeWO4 (or wolframite (Fe,Mn)WO4) are met in nature in different contexts. They may also form by the alteration of each other.
Caruba, Raoul +2 more
core +1 more source