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ore mineral of chromite ore

Ore Minerals : What are Ore Minerals? Geology Page

Ore Minerals. Image Credits: bonchan/shutterstock Ore Minerals. An ore is a natural occurrence of rock or sediment which contains enough minerals with economically important elements typically metals that can be extracted from the deposit economically. The ores are extracted by mining for a profit from the earth; they are then refined often ...

Optical properties of Ore Minerals

Chromite Very deep brown . PHYSICAL PROPERTIES OF ORE MINERALS IN POLISHED SECTIONS. The physical properties of ore minerals observed in polished sections are of great assistance in mineral identifi ion and hence their study is routine in ore microscopy. The most useful and easily observable physical properties are crystal form and habit ...

Chromite: The only mineral ore of chromium metal

Chromite is important because it is the only economic ore of chromium an essential element for a wide variety of metal chemical and manufactured products. Many other minerals contain chromium but none of them are found in deposits that can be economically mined to produce chromium.

Chromite Physical - Optical Properties Uses Occurrence ...

Chromite is an oxide mineral that an iron chromium oxide with formula: FeCr2O4. It is belonging to the spinel group. Chromite is the most important ore of chromium. Crystals are uncommon but when found they are octahedral. Chromite is usually massive or in the form of lenses and tabular bodies or it may be disseminated as granules. It is sometimes found as a crystalline inclusion in diamond ...

Chromite: Mineral information data and localities.

Chromite is the most important chromium ore mineral. It forms a complete solid solution series with many other members of the group eg. in the Chromite-Hercynite Series Chromite-Spinel Series Chromite-Magnetite Series and the Chromite-Magnesiochromite Series.

Chromite - Wikipedia

When chromite ore is exposed to surface conditions weathering and oxidation can occur. The element chromium is most abundant in chromite in the form of trivalent Cr-III . When chromite ore is exposed to aboveground conditions Cr-III can be converted to Cr-VI which is the hexavalent state of chromium.

Extraction of Chromium from Chromite Ore

Of the chromite ore imported into the USA the metallurgical industry consumed about 59 pct the chemical industry consumed 21 pct and the refractory industry consumed 20 pct. The average grade of the metallurgical chromite ore was 43.4 pct Cr2O3 with 52 pct of the ore having a chromium-to-iron ratio of 3:1 or over 17.6 pct having a ratio between 2:1 and 3:1 and 30.4 pct having a ratio ...

chromite ore mineral mining Making Transactions Easier ...

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chromite ore zambales.pdf - MINERALIUM DEPOSITA Mineral ...

Chromite is used for ore and ore deposits = chromitites ; the chemical composition has been determined by wet chemistry AAS or by microprobe analysis layered intrusions contain merely chemical-grade chromite ore 44wt% Cr203; Cr/Fe=l.5 which is also very important as low-grade metallurgical ore charge grade 2 The wide compositional variation of chromite ores from podiform deposits is ...

Chromium Ore - an overview ScienceDirect Topics

Knowledge of the chromium ore minerals proper and their associated rocks-forming minerals is needed to explore new chromite fields and to predict the efficiency of individual methods for the beneficiation of chromite ores. It is important also to know the physicochemical properties of individual mineral fractions of chromite ores and preparation of ore or concentrates for electric smelting ...

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