GEO 102 Lecture 7 Outline of Last Lecture I What the Earth is made of Outline of Current Lecture II Mineral A Definition of a mineral III Structure IV Chemical Composition V Inorganic and minerals in the world Current Lecture Mineral Any naturally occurring inorganic solid that possesses an orderly internal structure and a definite chemical composition Structure Atomic scale structure is translated to macro scale Chemical Composition It may vary in only minor ways within a mineral This and structure determine its properties Alone it cannot define a mineral Diamonds Coal Inorganic These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Can be tricky Organic means it contains carbon hydrogen bonds Many true minerals are made by organisms Coral aragonite bone apatite tooth enamel etc Minerals in the World About 4000 naturally found on Earth Very rare to find large perfect crystals Most minerals occur in imperfect form in inconspicuous ways
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