Results 31 to 40 of about 21,436 (259)

A TEM investigation of optical variations in sphalerite. [PDF]

open access: yes, 1987
Sphalerites from the Force Crag Pb-Zn vein, N England, show darker coloured zones found not only to be richer in Cu, Fe, Sb, Ag and Pb but also to contain precipitates of tetrahedrite-like composition.
Dickinson, C., Pattrick, R. A D
core   +1 more source

Mineralogy of the ores on the southern flank of the Mutnovskoe gold-silver-polymetallic deposit (Southern Kamchatka)

open access: yesРуды и металлы, 2022
The Mutnovskoe deposit is one of the largest and most prospective ore deposits in South Kamchatka. The northern and southern flanks within the main veining zone Opredelyayushchaya, composed of low-sulfide (gold-silver) and sulfide-polymetallic (gold ...
Ksenia O. Shishkanova   +2 more
doaj   +1 more source

Comparison of the Effect of Tap Water and Process Water on the Galena and Sphalerite Minerals Flotation [PDF]

open access: yesMuhandisī-i manābi̒-i ma̒danī, 2021
In this study, the effect of recycled water on the grade and recovery of lead and zinc sulfide flotation in comparison with Tap water has been investigated.
R. Ahmadi, M. Mobarhan, Gh.R. Karimi
doaj   +1 more source

MINERALOGICAL AND GEOCHEMICAL FEATURES OF SULFIDE CHIMNEYS OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2019
Three mineral types of hydrothermal chimneys (pyrite-chalcopyrite, pyrite-sphalerite-chalcopyrite and chalcopyrite-pyrite-sphalerite) form a continuous mineralogical range in ores from the Yubileynoe deposit.
A.S. Tseluyko   +5 more
doaj   +1 more source

‘Soft’ phonon modes,structured diffuse scattering and the crystal chemistry of Fe-bearing sphalerites [PDF]

open access: yes, 2005
Electron diffraction has been used to carefully investigate the reciprocal lattices of a range of iron-bearing sphalerites looking for evidence of Fe clustering and/or Fe/Zn ordering in the form of either additional satellite reflections or a structured ...
Liu, Yun   +4 more
core   +2 more sources

Leaching and thermal decomposition of mechanically activated sphalerite-pyrite mixture [PDF]

open access: yesActa Montanistica Slovaca, 1997
The effect of mechanical activation and pyrite addition on the thermal decomposition and acid leaching of sphalerite was studied. Mechanical activation enhances both hydrometallurgical and pyrometallurgical processing of sphalerite.
BalហPeter
doaj  

Modeling of Structure, Thermodynamic Properties and Phase Transition Temperaturesof II-VI Crystals [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
The work is devoted to the theoretical calculations and experimental study of important thermodynamic parameters of II-VI crystals. Cubic sphalerite and hexagonal wurtzite cluster models of polymorphs for stoichiometric II-VI crystals (ZnX, CdX; X = S ...
T.O. Parashchuk
doaj   +1 more source

Activation of Sphalerite by Ammoniacal Copper Solution in Froth Flotation

open access: yesJournal of Chemistry, 2016
The activation of sphalerite particles by ammoniacal copper solution (ACS) was investigated in this study. This microflotation study was conducted on a single sphalerite mineral with the particles size of 38 μm to 75 μm.
Xian Xie, Kai Hou, Bo Yang, Xiong Tong
doaj   +1 more source

A novel property of DNA - as a bioflotation reagent in mineral processing. [PDF]

open access: yesPLoS ONE, 2012
Environmental concerns regarding the use of certain chemicals in the froth flotation of minerals have led investigators to explore biological entities as potential substitutes for the reagents in vogue.
Balasubramanian Vasanthakumar   +2 more
doaj   +1 more source

Status of Ecosystem Services in Abandoned Mining Areas in the Iberian Peninsula: Management Proposal

open access: yesToxics, 2023
An abandoned sphalerite mining area in the southwest (SW) of the Iberian Peninsula was studied to evaluate the impact that the presence of metal(loid)s has on soil and ecosystem health.
María González-Morales   +2 more
doaj   +1 more source

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