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Mohs hardness scale, with a lot of minerals reviewed. I searched a while to find a comprehensive list of Mineral hardness and this is the best I could uncover.Thing of Interest

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@Hannah Mestel Mestel Mestel Clayton @Leslie Lippi Lippi Riemen Mackay for our binders

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Although this gemstone came into being millions of years ago, it has only been known by the name of morganite since 1911, before that the gemmological world simply viewed the pink beryl as a variety of beryl, not as a gemstone in its own right. mainly comes from deposits in Brazil, Madagascar, Afghanistan and California. Its good hardness of 7.5 to 8 on the Mohs scale http://www.adlero.com

Sapphires are extremely durable, rated as a 9 out of 10 on the Mohs Scale of Hardness, the only natural item that can scratch a Sapphire is a diamond! Product Details: 9ct Yellow Gold Pear Sapphire & Simulated Diamond Stud Earrings (8x10mm) https://www.jollysjewellers.com/product/9ct-yellow-gold-pear-sapphire-simulated-diamond-stud-earrings-8x10mm/

Spinel crystal on snow white marble. But it looks like cherry ice on snow! Tasty on a very hot day...like today. http://crystalclassics.co.uk/hall-of-fame/detail.php?id=3068

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The Mohs scale of mineral hardness characterises 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 geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.

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