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Robert Beauford
30 followers -
Geoscience, Jewelry, Art, Writing
Geoscience, Jewelry, Art, Writing

30 followers
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Though it is one of humanity's most important and useful metals, aluminum is also one of the most recently discovered and refined!
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Arkansas Bauxite - the History of Aluminum
Copper has been worked and used by humanity for at least 11,000 years.  Tin has been extensively exploited for at least 5000 years, and iron has been used for nearly as long, but heavily for about 3000.  Aluminum, however, has been in widespread use by huma...
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Draperies of flowstone are only one of several types of speleothems, or cave formation, that can be found in Onyx Cave, near Eureka Springs, AR. The term 'onyx' is not a mineral name, but rather a commercial one. It has been used to refer to a number of d...
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