chromite in rocks

• chromite in Rocks and Mineral Specimens | eBay

  Find chromite from a vast selection of Rocks and Mineral Specimens Get great deals on eBay!...

• Chromite mineral information and data - Dakota Matrix Minerals

  Named for the content of chromium Chromite is a common and widespread mineral that occurs in the ultramafic layers of layered igneous intrusions, as an accessory mineral in Alpine-type peridotites, as a detrital mineral, in meteorites, and in lunar basalts...

• Chromium | Minerals Education Coalition

  Chromium (Cr) is a hard, bluish metallic element The only ore of chromium is the mineral chromite and 99 percent of the world’s chromite is found in southern Africa and Zimbabwe Geologists estimate that there are about 11 billion tons of mineable chromite ore in the world, enough to supply the current demand for hundreds of years...

• Chromite mining - The Oregon Encyclopedia

  The story of chromite in Oregon begins during the Jurassic Period, approximately 150 million years ago, when both the Klamath and Blue mountains were part of Oregon's early Coast Range Containing Oregon's oldest rocks, those mountains share the state's largest formations of peridotite and serpentine, the environment in which chromite is formed...

• Meteorite Minerals

  Chromite--FeCrO4--This ore of chrome is common on earth and as a trace mineral in iron meteorit It is black, with cubic crystal form and octahedral cleavage , Feldspars--calcium, sodium aluminum silicates--are the most important rock forming minerals in ,...

• Chromite Ore Rocks - cz-eueu

  Chromite grains have the Kemi chromite deposit rock with disseminated chromite Get Price And Support Online; chromite ore in philippine rock ston chromite ore mining methods is manufactured, Chromite Mining Process 1 What is Chromite? Chromite ore is rock that contains a high, Philippine Society List Get Price And Support Online...

• Gabbro - an overview | ScienceDirect Topics

  The rock occurs in close association of mafic gabbro and ultramafic layered intrusion igneous complex, eg Bushveld (South Africa) and Stillwater (Montana, USA) with large platinum group of deposits, and layered igneous complex with large deposits of chromite at Sukinda and Nausahi (Figs 422 and 423), India The common usages are ornamental ....

• Chromite: Mineral information, data and localiti

  The Fe-dominant species - chromite itself - can be FOUND, although uncommonly, in many "chromite" deposits, chromitite (rock name), and other "chromite"-bearing occurrences connected with hyperbasic rocks As a rule of thumb, a member of the chromite-magnesiochromite series is twice as likely to be a magnesiochromite instead of a chromite...

• chromite in rocks - miningbmw

  Chromite - Wikipedia, the free encyclopedia Chromite is found as orthocumulate lenses of chromitite in peridotite from the Earth's mantle It also occurs in layered ultramafic intrusive rocks...

• Chromite | Mineralogy4Kids

  The only ore of chromium, chromite is a major constituent in stainless steel It is one of the first minerals to separate from a cooling magma, and large chromite deposits are thought to have been derived by such magmatic differentiation...

• CHROMITE - sdecocorg

  Chromite is a common accessory mineral, virtually in all types of ultramafic rocks In certain instances the chromite grains can become sufficiently concentrated to form economic chromite deposits The deeper plutonic portions of ophiolite complexes tend to contain economic deposits of chromite (COLEMAN, 1977)...

• Chromite Ore Rocks - cz-eueu

  Chromite grains have the Kemi chromite deposit rock with disseminated chromite Get Price And Support Online; chromite ore in philippine rock ston chromite ore mining methods is manufactured, Chromite Mining Process 1 What is Chromite? Chromite ore is rock that contains a high, Philippine Society List Get Price And Support Online...

• Chromite | Earth Sciences Museum | University of Waterloo

  Back to Rocks and Minerals Articl Kathy Feick Chromite is the main source of the metal chromium, a metal used to induce hardness, toughness and chemical resistance in steel It was named after its chemical composition, chromium oxide The mineral is brownish to black in ,...

• Genesis of chromite deposits by dynamic upgrading of Fe ,

  Jan 18, 2019· There are oxide-silicate–facies iron formations and Fe-Ti oxide-bearing gabbros in underlying rocks, the intrusions contain iron-formation and gabbro xenoliths, the parental magma was a chromite-saturated low-Mg komatiite (Mungall et al, 2010), and the chromite-bearing intrusions are dominated by cumulates and interpreted to represent flow ....

• Geology - rocks and minerals - University of Auckland

  Chromite, an oxide mineral, is the major ore of chromium It is often used for the bricks and linings of blast furnaces as it can withstand very high temperatur Chromite is one of the first minerals to crystallise in deep ultra- mafic magmas, and becomes concentrated as it sinks to the bottom of the magma chamber...

• Chromite: The mineral Chromite information and pictures

  Chromite, the principle ore of the element chromium, is a commercially valuable mineral However, due to mining restrictions and the fact that Chromite is not commonly found in crystallized form, it is not well-represented in mineral collections...

• Petrotectonic significance of the chemistry of chromite in ,

  Petrotectonic significance of the chemistry of chromite in the ultramafic–mafic complexes of Pakistan , and small lenses of chromite in ultramafic rocks (Jan et al, 1985)...

• Gabbro with chromite band | Virtual Microscope

  The United Kingdom Virtual Microscope (UKVM) collection consists of igneous, sedimentary and metamorphic rocks from around the UK It is intended as a teaching resource, helping to tell the story of the common rock types and how they form, and reflecting the history of the UK at the margins of the continent of Europe , Gabbro with chromite band...

• Wisconsin Geological & Natural History Survey » Chromite

  Formula: FeCr 2 O 4 Isometric Description: Chromite occurs as small grains in ultramafic rock associated with serpentine, talc, magnesite and brucite It is an important ore of chromium when found in quantity CLARK COUNTY: A minute black metallic grain in amphibolite at the Long Branch Quarry west of Thorpe, was identified as chromite according to EDS data (Buchholz, 2000, personal ....

• How to Identify Black Minerals - ThoughtCo

  Dec 26, 2018· Pure black minerals are less common than other types of minerals, and they can be difficult to recognize But by carefully observing such things as grain, color, and texture, you can easily identify many black mineralsThis list will help you identify the most significant of them, along with notable geological characteristics, including luster and hardness as measured on the Mohs Scale...

• Chromite - energyminingsagovau

  Chromite is used as a refractory in the production of steel, copper, glass and cement Chromite occurs as a primary accessory mineral in basic and ultrabasic igneous rocks Economic deposits form by crystallisation of chromite from a cooling magma, resulting in ,...

• Chromite - sandatlasorg

  Chromite in igneous rocks may form bands or layers which are very important mineral resourc These layers are the result of a crystal settling in a magma chamber Such deposits are for example Bushveld complex in South Africa and the Great Dike in Zimbabwe It ,...

• Meteorite Minerals

  Chromite--FeCrO4--This ore of chrome is common on earth and as a trace mineral in iron meteorit It is black, with cubic crystal form and octahedral cleavage , Feldspars--calcium, sodium aluminum silicates--are the most important rock forming minerals in ,...

• Chromite and Other Mineral Deposits in Serpentine Rocks Of ,

  CHROMITE AND OTHER MINERAL DEPOSITS IN SER­ PENTINE ROCKS OF THE PIEDMONT UPLAND, MARY­ LAND, PENNSYLVANIA, AND DELAWARE By NANCY C PEARRE and ALLEN V HEYL, JR ABSTRACT The Piedmont Upland in Maryland, Pennsylvania, and Delaware is about 160 miles long and at the most 50 miles wide...

• Wisconsin Geological & Natural History Survey » Chromite

  Formula: FeCr 2 O 4 Isometric Description: Chromite occurs as small grains in ultramafic rock associated with serpentine, talc, magnesite and brucite It is an important ore of chromium when found in quantity CLARK COUNTY: A minute black metallic grain in amphibolite at the Long Branch Quarry west of Thorpe, was identified as chromite according to EDS data (Buchholz, 2000, personal ....

• (DOC) Chromite ore | Omar Magdy - Academiaedu

  Chromite ore Chromite is an iron chromium oxide mineral and the only ore of chromium metal It is a mineral found in ultrabaisc rocks such as peridotite It is also found in serpentines and other metamorphic rocks derived from the alteration of ultrabasic rocks...

• Chromite - Wikipedia

  Chromite is found as orthocumulate lenses of chromitite in peridotite from the Earth's mantleIt also occurs in layered ultramafic intrusive rocks In addition, it is found in metamorphic rocks such as some serpentinit Ore deposits of chromite form as early magmatic differentiat It is commonly associated with olivine, magnetite, serpentine, and corundum...

• Chromite Archives - Where to Find Rocks

  agate Arizona Barstow Book Excerpt Calcite california Christmas Chromite colorado copper crystals east coast Feldspar Field Collecting fluorite Fossils garnet garnets Lapidary Los Angeles Maryland meme mica Michigan MinDat mineral collecting Minerals Mineral Show Mineral Shows New York pennsylvania petrified wood quartz Rockhound Rockhounding ....

• chromite in rocks - leeskringdemapnl

  Ophiolitic_Rocks Homestead 2017-7-15 An ophiolite is a section of the Earth's oceanic crust and the underlying upper mantle that has been uplifted and exposed above sea level and often emplaced onto continental crustal rocks, Chromite and Other Mineral Deposits in ,...

• Mineral Inclusions in Chromite from the Chromite Deposit ,

  Mineral Inclusions in Chromite from the Chromite Deposit in the Kudi Ophiolite, Tibet, Proto-Tethys Article (PDF Available) in Acta Geologica Sinica 91(2):469-485 April 2017 with 296 Reads...

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