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Gemstone's Hardness

Mohs Hardness Scale:
Mineral(Gemstone)'s  Name Hardness
Talc 1
Gypsum 2
Calcite 3
Fluorite 4
Apatite 5
Glass 5.5
Orthoclase (Feldspar/Moonstone) 6
Spodumene (Kunzite)  6.5-7
Quartz(Amethyst/ Citrine/Ametrine)  7
Zircon  7.5
Beryl (Emerald/Aqua./Morganite) 7.5-8
Spinel / Topaz  8
Synthetic Cubic Zirconia 8-8.5
Chrysoberyl / Alexandrite 8.5
Corundum (Ruby & Sapphire) 9
Synthetic Moissanite  9.25
Diamond 10
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