A '''columnar''' [[Mineral Aggregates|mineral aggregate]] is made up of slender, [[parallel]] [[columns]]. [[Beryl]] is an example of a [[mineral]] exhibiting a columnar form. Chesterman, p. 40
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A '''columnar''' [[Mineral Aggregates|mineral aggregate]] is made up of slender, [[parallel]] [[column]]s. [[Beryl]] is an example of a [[mineral]] exhibiting a columnar form.
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=Sources=
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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)
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*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987), ''p. 40''