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ten minerals that make up the Mohs hardness scale are as follows: talc (1), gypsum (2), calcite (3), fluorite For instance, the jump in hardness from corundum to diamond is much greater than from calcite to fluorite

Here's a breakdown of the Mohs scale : Talc Gypsum Calcite Fluorite Apatite Orthoclase Quartz Topaz Corundum 7.5 Moldavite: 5-5.5 Clear Quartz: 7 Topaz: 8 Labradorite: 6-6.5 Carnelian: 6.5-7 Lapis Lazuli: 5-5.5 Fluorite

Sterling Silver Quick View Rose Quartz Puffy Heart Necklace, 14k Gold Filled Quick View Angel Wing Fluorite Crystal Necklace, Sterling Silver Quick View Angel Wing Fluorite Crystal Necklace, 14k Gold Quick View