Mohs Scale of Mineral Hardness
978-613-0-65330-9
6130653301
88
2010-04-22
34.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science. The method of comparing hardness by seeing which minerals can scratch others, however, is of great antiquity, having first been mentioned by Theophrastus in his treatise On Stones in ca 300 BC, followed by Pliny the Elder in his Naturalis Historia circa A.D. 77.
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Mineralogy,petrography
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