Results 101 to 110 of about 3,405 (219)

Arsenopyrite with quartz

Photographed by Ron Wolf.Metallic grey blocky arsenopyrite with small transparent quartz ...
Wolf, Ron
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Formation Process of the Passivating Products from Arsenopyrite Bioleaching by Acidithiobacillus ferrooxidans in 9K Culture Medium

, 2019
Arsenopyrite is a common sulphide mineral occurring in deposits of gold ore that makes the extraction of gold difficult and, thus, pre-treatment is necessary prior to gold leaching.
Tao Jiang, Qian Li, Yan Zhang, Xiaoliang Liu, Bin Xu, Yongbin Yang   +5 more
core   +1 more source

Gold in arsenopyrite

Gold in arsenopyrite taken through microscope (68x).

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Arsenopyrite weathering under conditions of simulated calcareous soil

, 2016
International audienceMining activities release arsenopyrite into calcareous soils where it undergoes weathering generating toxic compounds. The research evaluates the environmental impacts of these processes under semi-alkaline carbonated conditions ...
Velázquez, Leticia J., Sosa-Rodríguez, Fabiola S., Espinosa-Cristóbal, León F., Escobedo-Bretado, Miguel A., Dossot, M., Lara, René H., Vazquez-Arenas, Jorge, Mallet, Martine, Labastida, Israel, Dossot, Manuel, Cruz, Roel   +10 more
core   +1 more source

The Paleo-Tethys subduction and related mineralization in the SW Yangtze Block: Evidence from the Zhesang Carlin-type gold deposit

Geosystems and Geoenvironment
The Zhesang gold deposit is a Carlin-type gold deposit located in the “Golden Triangle” structural belt of Yunnan-Guizhou-Guangxi. Pyrite and arsenopyrite are important gold-bearing minerals of the deposit.
Hui-Dong Yu, Li-Ming Yu, Nuru Said, Chang-Cheng Huang, Jiang-Han Wu, Chun-Mei Liu, Hai-Feng Chen, Hao Zou   +7 more
doaj   +1 more source

Towards the concentration of gold-rich arsenopyrite and rejection of gangue pyrite from an auriferous concentrate

, 2022
Despite the seeming benefits decoupling pyrite and arsenopyrite minerals present in practice, little success has been achieved. The present study presents possible process routes for attaining selective flotation broadly capitalizing on differential ...
Skinner, W., Forson, P., Zanin, M., Asamoah, R.   +3 more
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Weathering of arsenopyrite in soils in acidified environment [PDF]

, 2010
Lenka Soukupová, Zvětrávání arsenopyritu v lesních půdách v acidifikovaném prostředí SUMMARY The weathering of arsenopyrite (FeAsS) has been studied at the experimental site Načetín in the Ore Mountains, Czech Republic. There were chosen three areas with
Soukupová, Lenka
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Shifts in the Microbial Populations of Bioleach Reactors Are Determined by Carbon Sources and Temperature. [PDF]

Biology (Basel), 2023
Bulaev A, Kadnikov V, Elkina Y, Beletsky A, Melamud V, Ravin N, Mardanov A.   +6 more
europepmc   +1 more source

Potential role of thiobacillus caldus in arsenopyrite bioleaching

, 1999
We investigated the potential role of the three strains of Thiobacillus caldus (KU, BC13, and C-SH12) in arsenopyrite leaching in combination with a moderately thermophilic iron oxidizer, Sulfobacillus thermosulfidooxidans. Pure cultures of T. caldus and
Lindstrom, Börje,, Dopson, Mark,
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A brief review of auriferous sulphide flotation concentration; pyrite and arsenopyrite mineral separation

, 2020
Pyrite, the most abundant sulphide mineral in the earth crust is mostly found in close association with arsenopyrite in mostauriferous complex ore bodies.
Skinner, W., Asamoah,, Forson, P., Zanin, M.   +3 more
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