Results 241 to 250 of about 1,914,211 (292)

Isolated single-molecule magnets on native gold

Chemical Communications, 2005
The incorporation of thioether groups in the structure of a Mn12 single-molecule magnet, [Mn12(O12)(L)16(H2O)4] with L = 4-(methylthio)benzoate, is a successful route to the deposition of well-separated clusters on native gold surfaces and to the addressing of individual molecules by scanning tunnelling microscopy.
L. ZOBBI, M. MANNINI, M. PACCHIONI, G. CHASTANET, D. BONACCHI, ZANARDI, Chiara, BIAGI, Roberto, DEL PENNINO, Umberto, D. GATTESCHI, CORNIA, Andrea, R. SESSOLI   +10 more
openaire   +5 more sources

The Ag/Au ratio of native gold and electrum and the geochemical environment of gold vein deposits in Japan

Mineralium Deposita, 1987
Shimizu M
exaly   +2 more sources

Geochemistry of native gold from deposits of various types

Geology of Ore Deposits, 2013
L. Nikolaeva, A. N. Nekrasova, S. Milyaev, S. Yablokova, A. Gavrilov   +4 more
exaly   +2 more sources

Newly Discovered Native Gold and Bismuth in the Cihai Iron‐Cobalt Deposit, Eastern Tianshan, Northwest China

Acta Geologica Sinica, 2016
Zheng Jiahao, Mao Jingwen, Yang Fuquan, Chai Fengmei, Liu Feng   +4 more
exaly   +2 more sources

The host minerals of native gold

Economic Geology, 1944
An intensive review of the literature as well as microscopic study of many ores shows that gold occurs most frequently in direct contact with the following ore minerals in the order named: pyrite, arsenopyrite, galena, sphalerite, chalcopyrite, bismuth minerals, pyrrhotite, tetrahedrite-tennantite.
openaire   +1 more source

Trace element distribution in native gold

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1996
Abstract PIXE with the HIAF proton microprobe has been used to study the trace element distribution in gold from alluvial sources and ore samples, to investigate the possibility of identifying characteristics distributions associated with different types of geological environments.
S.H. Sie, S. Murao, G.F. Suter
openaire   +1 more source

Native gold and native copper grains enclosed by olivine phenocrysts in a picrite lava of the Emeishan large igneous province, SW China

American Mineralogist, 2006
Zhaochong Zhang
exaly   +2 more sources

A review of the flotation of native gold and electrum

Minerals Engineering, 2001
Abstract Native gold and electrum are naturally-occurring alloys containing gold and silver and a little copper. They are the most common and important forms of gold in ores. Their recovery by gravity concentration, cyanidation, or flotation from ores, typically containing 0.1–20 g/t Au is of great commercial importance.
G.C. Allan, J.T. Woodcock
openaire   +1 more source

Study of native gold from the Luopensulo deposit (Kostomuksha area, Karelia, Russia) using a combination of electric pulse disaggregation (EPD) and hydroseparation (HS)

Minerals Engineering, 2008
L. Cabri, N. Rudashevsky, V. Rudashevsky, V.Ya. Gorkovetz   +3 more
exaly   +2 more sources

Museum specimens of native Scottish gold

Transactions of the Edinburgh Geological Society, 1879
There are several reasons that lead me to suppose that it is desirable to place upon record some account of the various samples of Scotch gold and gold quartz, which are to be found in our national and other public museums. The most important of these reasons is, that I believe not a few of the specimens in question to be spurious, in so far as they ...
openaire   +1 more source