apatite mineral ore
Scheelite - Wikipedia
Scheelite is a calcium tungstate mineral with the chemical formula Ca W O 4 is an important ore of tungsten (wolfram). Well-formed crystals are sought by collectors and are occasionally fashioned into gemstones when suitably free of flaws. Scheelite has been synthesized using the Czochralski process; the material produced may be used to imitate diamond, as a scintillator, or as a solid ...Read more
Apatite: Its uses as a mineral and gemstone
What is Apatite? Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Apatite has a relatively consistent hardness and serves as the index mineral for a hardness of five in the Mohs Hardness Scale.Read more
Mineral - definition of mineral by The Free Dictionary
Define mineral. mineral synonyms, mineral pronunciation, mineral translation, English dictionary definition of mineral. ... apatite - a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus. ... bauxite - a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides ...Read more
Mineral Properties, Photos, Uses and Descriptions
Apatite Arsenopyrite Augite Azurite Barite Bauxite Benitoite Beryl Biotite Bornite Calcite Cassiterite Chalcopyrite Charoite Chlorite Chromite ... Smithsonite is a zinc carbonate mineral, an ore of zinc, and a minor gemstone. Corundum. Corundum is the third hardest mineral. It is also the mineral …Read more
Apatite: Mineral information, data and localities.
"Apatite" is a field term for unidentified calcium phosphate members of the apatite group. Most "apatite" is fluorapatite, whereas hydroxylapatite is much less common and chlorapatite is very rare. "Apatite" crystals are short to long hexagonal prisms [0001], with {10 1 0} and {10 1 1} dominant; also thick tabular {0001}, frequently in the crystals of hydrothermal origin in pegmatites and ...Read more
Apatite - Wikipedia
Apatite is an ore mineral at the Hoidas Lake rare-earth project. Thermodynamics. The standard enthalpies of formation in the crystalline state of hydroxyapatite, chlorapatite and a preliminary value for bromapatite, have been determined by reaction-solution calorimetry. Speculations on the existence of a possible fifth member of the calcium ...Read more
Beryl: The mineral Beryl info & pictures (aquamarine, emerald)
Beryl is a most alluring and popular mineral. It occurs in a diversity of colors, and has several important gemstone varieties. The green variety, Emerald, is one of the most precious gems.Only green Beryl with a deep green color is called Emerald; light green Beryl is simply "Green Beryl" (or Heliodor if it has a yellowish color.)Aquamarine, another important gemstone, is the greenish-blue to ...Read more
Ore genesis - Wikipedia
Epithermal — mineral ore deposits formed at low temperatures (50-200 °C) near the Earth''s surface (<1500 m), that fill veins, breccias, and stockworks. Telethermal — mineral ore deposits formed at shallow depth and relatively low temperatures, with little or no wall-rock alteration, presumably far from the source of hydrothermal solutions.Read more
Mining - Wikipedia
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit.These deposits form a mineralized commodity that is of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay.Read more
Uranium ore - Wikipedia
The primary uranium ore mineral is uraninite (UO 2) (previously known as pitchblende).A range of other uranium minerals can be found in various deposits. These include carnotite, tyuyamunite, torbernite and autunite. The davidite-brannerite-absite type uranium titanates, and the euxenite-fergusonite-samarskite group are other uranium minerals.. A large variety of secondary uranium minerals are ...Read more
Magnetite: The mineral Magnetite information and pictures
Magnetite is an important ore of iron. Well formed crystals are popular among mineral collectors, and the magnetic Lodestone variety is frequently sold in hobby shops to amateur collectors. Magnetite is also of significant interest to the science community due to its strong magnetic properties.Read more
Physical Properties of Minerals - Tulane University
Hardness. Hardness is determined by scratching the mineral with a mineral or substance of known hardness. Hardness is a relative scale, thus to determine a mineral''s hardness, you must determine that a substance with a hardness greater than the mineral does indeed scratch the unknown mineral, and that the unknown mineral scratches a known mineral of lesser hardness.Read more
Uranium: How is it Mined?
Open pit mining, also known as strip mining, is the removal of surficial soils and uneconomic rock to get at the ore below. Ore grades are normally less than 0.5%. This is type of mining is only possible if the uranium ore is near the surface (normally less than 400 ft).Read more
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