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~~Is God willing~~ to ~~prevent evil~~, ~~but not able? Then he is not omnipotent~~. ~~Is he able~~, ~~but not willing? Then he is malevolent~~. ~~Is he both able~~ and ~~willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?~~

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The '''orthorhombic''' [[crystal system]] has three unequal [[axis|axes]], all at [[right angle]]s to one another.

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[[Crystal]]s are generally short, stubby, with a [[diamond]]-shaped or [[rectangle|rectangular]] cross section; characteristic forms are four-sided [[prism]]s, [[pyramid]]s, and [[pinacoid]]s (open forms made up of two [[parallel]] faces).

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==Sources==

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*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987), ''pp. 33-34''

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[[Category:Crystallography]]

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Orthorhombic system (view source)

Revision as of 02:11, May 2, 2011