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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Category: <span>M</span>
A yellow to brown monoclinic mineral, (Ce,La,Y,Th)PO4; an ore of radioactive or rare earth elements
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