Results 51 to 60 of about 10,252 (169)

Sphalerite

, 2022
Photographed by Ed Raines.Specimen size: 4 1/2 x 3 x 1/2 inches.Plate of shiny, jet black sphalerite crystals from the Eagle mine, Gilman mining district, Eagle County, Colorado.For more information about the Minerals of Gilman, Colorado and the ...
Raines, Ed
core  

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

PLoS 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, Honnavar Ravishankar, Sankaran Subramanian   +2 more
doaj   +1 more source

Atomic‐Scale Structurally Locked 1T/2H‐MoS2/ZnS Z‐Scheme Heterojunctions for Prolonged Charge Kinetics and Dual‐Functional Photocatalysis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic‐scale structurally locked 1T/2H‐MoS2/ZnS direct Z‐scheme heterojunction enabling dual‐functional photocatalysis. The metallic 1T‐MoS2 phase serves as an electronic actuator that bridges charge transfer across the heterointerface, resulting in prolonged charge kinetics, efficient hydrogen evolution, and complete degradation of Malachite Green ...
Jeongjin Lee, Younghwon Kim, Byeong Sub Kwak, Suyeon Lee, Geunhyeong Kim, Buseong Kim, Harim Jeong, Younghwan Im, Sadanand Pandey, Hojun Moon, Misook Kang   +10 more
wiley   +1 more source

Colour of Sphalerite [PDF]

, 1978
The colour of sphalerite is white nearly colourless when pure, whereas sphalerite with high Fe content is almost black in colour. Besides a minor amount of cadmium and manganese is contained in addition to iron.
Togari, Kenji
core  

A study of isotropic-pseudoanisotropic zoning in sphalerite [PDF]

Bulletin of the Geological Society of Finland, 1969
Sphalerite with isotropic-pseudoanisotropic zoning is described from greisen in Eurajoki, SW Finland. Single-crystal X-ray studies showed that the pseudoanisotropy is due to very small chalcopyrite inclusions, oriented with their crystallographic axes ...
I. Haapala, K. Laajoki
doaj   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source

The geology and the ore mineralization in the Keban area, east Turkey [PDF]

, 1969
The Keban mine is one of the most important lead and zinc producers in Turkey. It is located 54 km NW of Elazig County, Eastern Turkey. The Keban metamorphic massif consists of calc-schists, dolomite marble, phyllite and marble.
Kines, M. Tuncay
core  

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

Influence of the Interaction between Sphalerite and Pyrite on the Copper Activation of Sphalerite

, 2018
In this paper, the effect of pyrite on the activation of sphalerite was investigated by micro-flotation, copper adsorption experiments, X-ray photoelectron spectroscopy (XPS), and electrochemical measurement.
Xiong Tong, Bo Yang, Zhuoyue Lan, Xian Xie, Yiqi Cui   +4 more
core   +1 more source

Selective Oxidation Depression of Copper-Activated Sphalerite by H₂O₂ During Chalcopyrite Flotation

Metals
Using hydrogen peroxide (H2O2), a simple and easily accessible reagent, as a selective depressant, flotation separation experiments of chalcopyrite and copper-activated sphalerite were conducted.
Peiqiang Fan, Xiong Tong, Xian Xie, Qiang Song, Yuanlin Ma, Bin Han, Haitao Fu, Zhiming Lu   +7 more
doaj   +1 more source