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Mineral

A homogenous substance with defined chemical and physical properties, whose constituents are listed on the periodic table of elements

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Milling ore

Ore with sufficient values and characteristics to be capable of mechanically milled

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Mill

A plant where ore is processed in preparation for smelting

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Mica

A group of phyllosilicate minerals with perfect basal cleavage and often occur in “books” or multiple flexible “leafs”. Found in various states in all rock types and includes the minerals anandite, annite, biotite, bityite, celadonite, chernykhite, clintonite, ephesite, ferri-annite, glauconite, hendricksite, kinoshitalite, lepidolite, margarite, masutomilite, montdorite, muscovite, nanpingite, norrishite, paragonite, phlogopite, polylithionite, preiswerkite, roscoelite, siderophyllite, sodium phlogopite, taeniolite, tobelite, wonesite, and zinnwaldite

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Monazite

A yellow to brown monoclinic mineral, (Ce,La,Y,Th)PO4; an ore of radioactive or rare earth elements

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Meteorite

A meteor that has fallen to Earth which has resisted disintegration in the Earth’s atmosphere. Meteorites are either stone, iron, or a mixture of both which frequently contain other elements including nickel platinum, iridium