A yellow to brown monoclinic mineral, (Ce,La,Y,Th)PO4; an ore of radioactive or rare earth elements
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Category: <span>M</span>
A meteor that has fallen to Earth which has resisted disintegration in the Earths atmosphere. Meteorites are either stone, iron, or a mixture of both which frequently contain other elements including nickel platinum, iridium
A grayish-white, hard, metal. Symbol, Mo
An object that has entered the Earth’s atmosphere from space
A green vitreous mineral formed by a meteorite impact and considered a tektite
A combustible gas formed through the decomposition of organic matter, CH4
A portion of the Earth between the crust and upper mantle. Named after Andrija Mohorovi?i?
Partially metamorphosed volcanic rocks
To surround with a trench or ditch, usually purpose built to hold water
A sulphide ore of arsenic, arsenopyrite. FeAsS