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Apatite - Smithsonian National Museum of Natural History
Apatite is a phosphate mineral that has a hardness of 5 on the Mohs scale , making it too soft to be widely used as a gemstone for jewelry. Apatites are transparent to translucent, most commonly green to blue, but can also be colorless, yellow, violet, pink or brown. naturalhistory.si.edu
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Apatite - Wikipedia
Apatite is a group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH − , F − and Cl − ion, ... en.wikipedia.org
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Blue Apatite Meanings and Crystal Properties
Blue Apatite is a stone of manifestation attuned to the future, activating psychic abilities and allowing expansion of knowledge. thecrystalcouncil.com
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apatite
apatite Min. (ˈæpətaɪt) [mod. f. (by Werner 1786) Gr. ἀπάτη deceit + -ite; in reference to the diverse and deceiving forms of the mineral.] A native crystallized phosphate of lime, varying in colour from white to green, blue, violet, brown; transparent, translucent, or opaque.1803 Edin. Rev. III. 51... Oxford English Dictionary
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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 ... www.mindat.org
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Apatite Mineral Data
Apatite's chemical formula is Ca5(PO4)3(OH,F,Cl), with a molecular weight of 509.12 gm. It can be white, yellow, green, red, or blue, and has a hardness of 5. webmineral.com
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Apatite, the beautiful stone with a tender heart - Les Pierres de Julie
Apatite is a rather common mineral. It belongs to the phosphate's family and has a complex crystal structure. The crystals are either opaque or ... www.lespierresdejulie.com
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ALEX STREKEISEN-Apatite-
Apatite is a very common early-formed accessory mineral in nearly all type of igneous rocks. Apatite is also concentrated by late magmatic segregation. www.alexstrekeisen.it
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Apatite Value, Price, and Jewelry Information - Gem Society
Everything you ever wanted to know about apatite. Find value guidelines, scientific data, expert comments, and more in our Gemstone ... www.gemsociety.org
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Exquisite Apatite Gemstones | Paraiba International | Buying Guide
Apatite is named after apate, the Greek word for deceit, since it can often be similar in appearance to many other precious minerals like beryls, ... www.paraibainternational.com
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Apatite 4He/3He and (U-Th)/He Evidence for an Ancient Grand Canyon
In the southwestern United States, the Grand Canyon is a striking example of the power of erosion over time. Over millions of years, flowing river water carved out the canyon that today measures over 1.6 km deep and 29 km long. Most models posit that the majority of the canyon formed 5 to 6 million years ago.
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Oxygen Isotope Palaeothermometry of Conodont Apatite: A review
Conodonts are phosphatic fossils widely distributed in Cambrian to Triassic marine strata. Due to the advantage of well preservation， the oxygen isotope values of conodont apati 119.78.100.143
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Detection of apatite in ferroan anorthosite indicative of a ...
9 hours ago — Intense heating during the collision followed by large-scale evaporation during the lunar magma ocean (LMO) phase is thought to have depleted ...
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Lead apatite
Lead apatite is a generic name for apatite-structure materials that contain lead as the divalent cation. A Copper-doped lead-apatite has been proposed as a room-temperature superconductor. A number of minerals are known. wikipedia.org
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Apatit
In 1994, only 6 million tonnes of apatite concentrate were produced, compared to 20 million tons in 1988. Core production activity is the production of apatite concentrate from apatite-nepheline ore. wikipedia.org
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