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rdfs:comment | - Le chromite était un minerai trouvable notamment sur la planète Allyuen dans le secteur Anoat. Durant le Blocus de Fer, l'Alliance Rebelle possédait une cache d'armures cachée dans une mine de chromite désaffectée.
- Chromite was a type of ore that could notably be found on the planet Allyuen, in the Anoat sector. During the Iron Blockade, the Alliance to Restore the Republic had a cache of armor hidden in a disused chromite mine on Allyuen.
- Chromite is iron magnesium chromium oxide: (Fe, Mg)Cr2O4. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts; also, aluminium and ferric iron commonly substitute for chromium. Chromite is also used as a refractory material. The only ore of chromium is the mineral chromite. In the western hemisphere, chromite ore is produced only in Brazil and Cuba; By comparison, about 80% of world production of chromite comes from India, Iran, Pakistan, Oman, Zimbabwe, Turkey and Southern Africa. Southern Africa itself produces about half of this.
- Chromite is found in peridotite. It also occurs in layered ultramafic intrusive rocks. In addition, it is found in metamorphic rocks such as some serpentinites. Ore deposits of chromite form as early magmatic differentiates. It is commonly associated with olivine, manganite, serpentine, and corundum. Chromite is used as a refractory material, because it has a high heat stability
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formula | - iron magnesium chromium oxide: Cr2O4
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habit | - Octahedral rare; massive to granular
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abstract | - Chromite is found in peridotite. It also occurs in layered ultramafic intrusive rocks. In addition, it is found in metamorphic rocks such as some serpentinites. Ore deposits of chromite form as early magmatic differentiates. It is commonly associated with olivine, manganite, serpentine, and corundum. Chromite is used as a refractory material, because it has a high heat stability The only ore of chromium is the mineral chromite. The two main products of chromite refining are ferrochromium and metallic chromium, for those products the ore smelter process differs considerably. For the production of ferrochromium the chromite ore (FeCr2O4) is reduced with either aluminium or silicon in a aluminothermic reaction and for the production of pure chromium the iron has to be separated from the chromium in a two step roasting and leaching process.
- Le chromite était un minerai trouvable notamment sur la planète Allyuen dans le secteur Anoat. Durant le Blocus de Fer, l'Alliance Rebelle possédait une cache d'armures cachée dans une mine de chromite désaffectée.
- Chromite was a type of ore that could notably be found on the planet Allyuen, in the Anoat sector. During the Iron Blockade, the Alliance to Restore the Republic had a cache of armor hidden in a disused chromite mine on Allyuen.
- Chromite is iron magnesium chromium oxide: (Fe, Mg)Cr2O4. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts; also, aluminium and ferric iron commonly substitute for chromium. Chromite is found in peridotite from the Earth's mantle. It also occurs in layered ultramafic intrusive rocks. In addition, it is found in metamorphic rocks such as some serpentinites. Ore deposits of chromite form as early magmatic differentiates. It is commonly associated with olivine, magnetite, serpentine, and corundum. The vast Bushveld igneous complex of South Africa is a large layered mafic to ultramafic igneous body with some layers consisting of 90% chromite making the rare rock type, chromitite. Chromite is also used as a refractory material. The only ore of chromium is the mineral chromite. In the western hemisphere, chromite ore is produced only in Brazil and Cuba; By comparison, about 80% of world production of chromite comes from India, Iran, Pakistan, Oman, Zimbabwe, Turkey and Southern Africa. Southern Africa itself produces about half of this. Chromite is mined from the ultramafic rocks in the Zhob District of Balochistan. Most of the chromite is of metallurgical grade with Cr2O3 averaging 46% and a chrome to iron ratio of 3:1.
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