Introduction to Mineralogy
Elements of Mineralogy
Symmetry, external morphology, and internal structure.
2) Chemistry of minerals:
Interpretation of chemical analyses, crystal chemistry (including bonding of atoms, sizes of ions, solid solution, etc.).
3) Physics of minerals:
Density, hardness, cleavage, optical, magnetic, radioactive, and electrical properties.
4) Mineral genesis:
Phase relations, igneous, metamorphic, & sedimentary environments.
5) Determinative mineralogy:
Diagnostic properties of a physical nature and chemical tests.
6) Classification of minerals:
i.e. - Descriptive mineralogy.
A naturally occurring solid inorganic substance which has fixed limits of chemical composition.
A homogeneous solid with an orderly internal atomic arrangement.
Klein and Hurlbut (Manual of Mineralogy) give the definition as:
A naturally occurring homogeneous solid with a definite, not fixed, chemical composition with an ordered atomic arrangement formed by inorganic processes.
Homogeneous solid = mechanically seperable from its surroundings.
Definite chemical composition:
determinable, definable extremes
Finally, things like coal and petroleum are not minerals, they are organic and do not have definite chemical compositions.
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