The Southern-2 ores are highly enriched in copper, nickel and platinum-group elements (PGEs): Cu up to 28.12 and 10.58 wt. %, Ni up to 6.29 and 2.45 wt. %, and Pt+Pd up to 220 and 173 ppm in the ...
The Spaniards found platinum grains intermingled with gold nuggets they ... (ppm) platinum. Today, the average grade of PGE in ores mined primarily for their PGE concen-trations range from 5 to 15 ppm. Over 100 minerals contain PGE as an essential component. In most rocks, ... nickel, and PGE. As the magma cools, the PGE-enriched …
The latest data on the material structure, ash value, and emplacement of platinum-copper-nickel and platinum ores in deposits of Norilsk Region were discussed. The concentrations of nonferrous and noble metals in ores were reported. The cryptic layering of sulfide ores was described. The information on the mineral forms of noble …
It is always associated with small amounts of other elements such as iron, gold, copper, and nickel, and may also contain the rare metals iridium, osmium, rhodium, and …
This resource provides detailed insights into the various types of natural gold ores and minerals. You'll learn about the different forms in which gold appears in …
Nickel and iron–cobalt ores from weathering crusts on ultramafic massifs in the Urals contain elevated PGE concentrations. Platinum group minerals first found in weathering crusts in Russia are ...
The determination of all the platinum group elements and gold in rocks and ore by neutron activation analysis after preconcentration by a nickel sulphide fire-assay …
In South Africa, the largest platinum-group metal deposit is the Bushveld Igneous Complex (BIC), containing 3-9 g/t platinum-group metals in ore, associated with base metals (Ni, Cu, etc.) with ...
A set of platinum group element (PGE) analyses of about 120 samples from a 250-m continuous drill core through the Mount Keith komatiite-hosted nickel orebody, combined with Ni, Cu, Co, S, and major elements, reveals a complex trend of covariance between the original cumulus components of a thick sequence of nearly pure …
Platinum is associated with iron, nickel and copper ores. In its final stages of extraction, it is dissolved in aqua regia from which it emerges in its pure form. Zimbabwe is the second-largest producer of platinum in Africa and produces 1% of the world's platinum from Zimplats, Unki and Mimosa mines whose ore reserves are estimated to …
Platinum is a rare metal and its ores are found only in a few places around the world mainly in igneous rock deposits formed some two thousand million years ago. South Africa …
Rock Type: Igneous, Sedimentary: Crystal System: Isometric: ... In addition to gold bearing sands, deposits of platinum are often found in outcroppings of plutonic rocks like olivine and chromite. The formation of these rocks are a testament to platinum's pedigree, as all were exposed to extremely high temperature and pressure in order to ...
The major deposits of platinum-group elements (PGE) of the Earth are associated with ultramafic and mafic igneous rocks. The bulk of current PGE production …
DOI: 10.1016/S0003-2670(01)93469-5 Corpus ID: 96656645; The determination of all the platinum group elements and gold in rocks and ore by neutron activation analysis after preconcentration by a nickel sulphide fire-assay technique on large samples
The distribution of platinum-group elements, nickel, copper, and gold in the Muskox layered intrusion, Northwest Territories, Canada ... which in turn was controlled by the distance from the contact with the country rock. Disseminated sulfides occur in association with a chromite-rich orthopyroxenite in the layered series of the …
It is a critical material for many industries and is considered a strategic metal. Platinum is used as a catalyst, platinum is mostly found in vehicle catalytic converters that reduce toxic exhaust chemicals, and also in fuel cells to increase efficiency. The most common use of platinum is as a catalyst in chemical reactions, often as platinum ...
Abstract. The present work reviews assemblages of detrital platinum-group minerals (PGM) in placers worldwide with the aim of identifying common and distinctive …
Talovina, I.V. and Lazarenkov, V.G., Distribution and Genesis of Platinum Group Minerals in Nickel Ores of the Sakhara and Elizaveta Deposits in the Urals, Litol. Polezn. ... V.G., Tikhomirov, I.N., Zhidkov, A.Y. et al. Platinum Group Metals and Gold in Supergene Nickel Ores of the Moa and Nikaro Deposits (Cuba). Lithol Miner Resour 40, 521 ...
The use of mantle normalisation and metal ratios in discriminating between effects of partial melting, crystal fractionation, and sulphide segregation on platinum-group elements, gold, nickel and copper. Examples from Norway. In: Prichard HM, Potts PJ, Bowles JFW, Cribb SJ, editors. Geo-Platinum 87. London: Elsevier Applied Science; p. …
ores contain platinum, palladium, rhodium, gold, ruthenium, iridium and osmium (the PGMs), as well as nickel, copper, and cobalt in economically re-coverable quantities. Three broad ore types are found within the BIC and exploited for their PGM values: the Merensky reef, the UG2 reef, and the Plat reef. The first two reefs are
Platinum group elements (PGEs) and gold may provide direct information on deep mantle processes, because of their extremely high concentrations in the mantle relative to the crust. However, reports of PGE abundances in basaltic samples have been limited because of difficulties in PGE analysis and the complicated behavior of PGEs during basalt …
Here is a summary of the key points about platinum ore: 1. Platinum ore refers to rocks or deposits that contain significant amounts of platinum, a rare and valuable metal with various industrial, automotive, jewelry, and other applications. 2. Platinum is typically found in association …
The platinum-group elements (PGE) include platinum, palladium, rhodium, ruthenium, iridium, and osmium. These metals have similar physical and chemical properties and …
Magmatic Ore Deposits in Layered Intrusions—Descriptive Model for Reef-Type PGE and Contact-Type Cu-Ni-PGE Deposits . Open-File Report 2012–1010
Platinum ores nearly always form in strongly basic rocks that are also commonly rich in iron, chrome and nickel. Many of them form via some process of magmatic segregation from molten rock as it cools in the earth. Unlike gold and silver ores, platinum ores are almost never present in quartz veins.
Learn interesting geological facts about platinum - where to find it, top producers, and why to invest. Physical Properties of Platinum. Composition. Platinum, with trace amounts …
Rocks, Ores, and Minerals in Nightingale appear in different shapes and sizes. However, their appearance differentiates them from normal rock formations.
Sulphide copper nickel ore texture close-up. Contains chalcopyrite, pyrrhotite, petlandia, cubanite and platinum group metal minerals. ... Gold texture. Gold texture. Rough structure mineral. Rock texture. Gold Ore. Rock backgrounds. Stone background. Foil. Heavy metal alphabet font. Chrome beveled letters and numbers. …
Platinum is among the rarest and most expensive of the popular precious metals. Natural platinum is fairly impure. It is always associated with small amounts of other elements (gold, copper, nickel and iron) and commonly contains the rare metals platinum, palladium, rhodium, iridium, osmium and ruthenium. ... is the only platinum ore of any ...
The platinum-group elements (PGE) and gold have been determined in twenty international rock reference materials by inductively coupled plasma-mass spectrometry (ICP-MS) after pre-concentration by a nickel sulfide fire assay. It was possible to achieve determination limits for a 50 g sample that ranged from 1 pg g-1 (Rh) to 23 pg g-1 (Au ...
