Minerals
http://facweb.bhc.edu/academics/science/harwoodr/Geol101/Labs/Minerals/
Minerals are defined as naturally occurring, inorganic, solids with a definite chemical composition and a regular, internal crystalline structure. The keys to this definition are the chemical composition and the crystalline structure. Different chemical compositions result in different minerals.
Physical Properties
Determination of the actual chemical composition and crystalline structure of a mineral is difficult without the proper equipment. In an introductory level lab it is impossible for us to determine these two aspects of a mineral.
Crystal Form
http://geomaps.wr.usgs.gov/parks/rxmin/mineral.html
http://pubs.usgs.gov/of/2001/0360/
http://pubs.usgs.gov/of/2000/0144/
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