Find Mohs hardness of common jewelry and jade.

Diamonds with hardness of 10 include diamond 9 corundum, ruby, sapphire 8-9 emerald, opal 8 topaz, spinel 7-8 tourmaline, tourmaline, beryl including emerald, Morganite, sapphire 7, timely, crystal 6-7 olivine and garnet.

Satisfied, please adopt.

Lukfook jewellery pearl er

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