chromite cuba


Spectroscopic characterization of chromite from the Moa ...

Acta Geologíca Hungarica, Vol. 40/3, pp. 337-353 (1997) Chromite deposits of the Sagua-Baracoa range, Eastern Cuba Gábor P. Kovács HungarÍlm Geological survey, Budapest György Buda Department of …

Chromite from Caledonia Mine, Holguín Province, Cuba

Name of deposit Deposit type State or Province Country; Blow-Me-Down: minor podiform chromite: Newfoundland: Canada: Bluff Head: minor podiform chromite: Newfoundland

Chrome resources of Cuba (eBook, 1942) [WorldCat.org]

Chromite deposits In the Moa district, on the north coast of Oriente Province, Cuba, form one facies of the ultramafic complex in which they occur. Two planar structures, one a compositional layering due to variations in the relative proportions of olivine, pyroxene, plagioclase feldspar, and chromite, and the other a foliation caused by the ...

(PDF) Uvarovite in podiform chromitite: The Moa-Baracoa ...

chromite mining in cuba Monograph on Chromite - Indian Bureau of Mines- chromite mining in cuba,31 Jul 2013, The Indian Bureau of Mines had come out with a monograph on chromite in 1982 Since, 421 Brazil 422 Canada 423 Cuba 424 United States of America 43 Asia 431 Afghanistan 432 Iran 433 Pakistan,.gravity prospecting for chromite deposits in camaguey province, cubaI Index map showing ...

Chromite Sand - Spinel - for the foundry industry | LKAB ...

D ⓘ Lolita Mine, Minas, Camagüey District, Camagüey Province, Cuba Mineral and/or Locality Mindat.org is an outreach project of the Hudson Institute of Mineralogy, …

Chromite deposits of the Sagua-Baracoa range, Eastern Cuba

Chromite contains Mg, ferric iron [Fe(III)], Al and trace amounts of Ti. Chromite can change into different minerals based on the amounts of each element in the mineral. Chromite is a part of the spinel group, which means that it is able to form a complete solid solution series with other members in the

About Cuban Chrome | Cuban Chrome | Discovery

In order to test a new technique to estimate the Fe 3+ /Fe 2+ ratio and to avoid EPMA systematic errors, X-ray photoelectron spectroscopy (XPS) has been used to determine the Fe 3+ /Fe 2+ ratio in four chromite samples from Cuba and the results compared with those

Cuba - Agriculture, forestry, and fishing | Britannica.com

Such podiform chromite deposits in Cuba located in a series of hill ranges extendly along east, west direction of which the Moa range having an altitude of about 3000 feet is important. It is thickly soil covered hill range and chromite occurrences are visible along the V …

Mining - Cuba - located, export

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.

Camagüey | Cuba | Britannica.com

Chromite deposits In the Moa district, on the north coast of Oriente Province, Cuba, form one facies of the ultramafic complex in which they occur. Two planar structures, one a compositional layering due to variations in the relative proportions of olivine, pyroxene, plagioclase feldspar, and chromite, and the other a foliation caused by the ...

Petrology and structure of the Moa Chromite district ...

Sep 25, 2014· Cuba is an important nickel and cobalt producer, ranking sixth in the world in terms of nickel and (fluctuatingly) accounts for 8% of the world's cobalt production. The nickel resource comes from extensive laterite deposits that are considered among the largest reserves in the world. Cuba ranks with Canada, Russia, Australia and New Caledonia.

Genesis and geology of alpine type of cuban chromite deposits.

The Raman spectrum of chromite shows three bands in the CrO stretching region at 730, 560 and 445 cm -1. The most intense peak at 730 cm -1 is identified as symmetric stretching vibrational mode, A 1g (ν 1 ) and the other two minor peaks at 560 and 445 cm -1 are assigned to F 2g (ν 4 ) …

CHROMITE. - USGS

Jun 18, 2019· Pinar del Rio, Cuba. Fall: 2019 Feb 01. Classification: Ordinary chondrite (L6) ... There are several small chromite-plagioclase assemblages and some olivine grains contain small chromite veinlets. The shock veins range to more than 1 cm in length and are typically 20 µm to 150 µm wide. The veins contain major silicate and small blebs of ...

Gravimeter prospecting for chromite in Cuba | Geophysics ...

PDF | The chromitite pods of the Moa-Baracoa massif, in the eastern ophiolitic belt of Cuba, contain pre-existing gabbro sills. This association is affected by two processes of hydrothermal ...

UVAROVITE IN PODIFORM CHROMITITE: THE MOA …

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Chromite : ClassicGems.net

Jun 18, 2019· Pinar del Rio, Cuba. Fall: 2019 Feb 01. Classification: Ordinary chondrite (L6) ... There are several small chromite-plagioclase assemblages and some olivine grains contain small chromite veinlets. The shock veins range to more than 1 cm in length and are typically 20 µm to 150 µm wide. The veins contain major silicate and small blebs of ...

Chromite - Mindat.org

chromite deposits of the Moa-Baracoa district (Proenza et al. 1997a, 1999), as well as of other districts in cen-tral Cuba (Flint et al. 1948 and at Coto in the Zambales ophiolite in Philippines (Leblanc & Violette 1983). These chromitites are made up of Al-rich chromite or chromian hercynite, with Cri(Cr+Al) = 0.45 (refractory grade).

Podiform chromite deposits containing chromite - USGS

Nickel, chromite, and copper mines are important to Cuba, and beds of laterite (an iron ore) in the Holguín region have considerable potential. Nickel ore, which also yields cobalt, is processed in several large plants, and Cuba is a world leader in nickel production. There are also major reserves of magnetite and manganese and lesser amounts ...

X-ray photoelectron spectroscopy characterization of ...

Nov 05, 2012· The chief mineral resources produced in Cuba, which aided its economy in 2010, were nickel and cobalt. The mining sector also produces other minerals including cement, feldspar, gypsum, iron ore, lime, limestone, asphalt, bentonite, chromite, zeolite, marble, steel, and sulfuric acid.

Chromite from Caledonia Mine, Holguín Province, Cuba

case studies of chromite ore prospecting in camaguey province, cuba. medium to large deposits of refractory chromite were discovered during that epoch. major mines were rafael, aventura, lolita, victoria with more than 200 000 t each. hundreds of chromite ore deposits and showings are located at different levels of the ophiolitic section.