topaz
The mineral with the greatest hardness is the diamond.
Scratching a mineral with a nail is a test of hardness. It helps determine the relative hardness of the mineral compared to known substances on the Mohs scale of mineral hardness.
Mineral hardness measures the resistance of a mineral to scratching or abrasion. It is determined by the ability of a mineral to scratch another mineral or be scratched by it, as defined by the Mohs scale of hardness.
{| ! Hardness ! Mineral ! Absolute Hardness ! Image | 1 Talc (Mg3Si4O10(OH)2) 1 2 Gypsum (CaSO4·2H2O) 2 3 Calcite (CaCO3) 9 4 Fluorite (CaF2) 21 5 Apatite (Ca5(PO4)3(OH-,Cl-,F-) 48 6 Feldspar (KAlSi3O8) 72 7 Quartz (SiO2) 100 8 Topaz (Al2SiO4(OH-,F-)2) 200 9 Corundum (Al2O3) 400 10 Diamond (C) |}
According to the Mohs scale of hardness, Diamond has a hardness of 10 and Quartz has a hardness of 7. Any mineral with a hardness greater than 7 can scratch quartz and diamond can scratch any mineral with a hardness less than 10. Corundum (hardness of 9) and Topaz (hardness of 8) are two examples of minerals that can scratch quartz but not diamond.
The mineral with hardness 3 will get scratched.
Ruby, a variety of the mineral corundum, has a hardness of 9 on the Mohs scale of mineral hardness.
Diamond is the only mineral that has the same hardness as corundum, which is the second hardest natural mineral on the Mohs scale after diamond. Both corundum and diamond have a hardness of 9 on the Mohs scale.
the mineral that has a hardness of 7 is "Quarts
The mineral with the greatest hardness is the diamond.
Scratching a mineral with a nail is a test of hardness. It helps determine the relative hardness of the mineral compared to known substances on the Mohs scale of mineral hardness.
Mineral hardness measures the resistance of a mineral to scratching or abrasion. It is determined by the ability of a mineral to scratch another mineral or be scratched by it, as defined by the Mohs scale of hardness.
the mineral that has a hardness of 7 is "Quarts
{| ! Hardness ! Mineral ! Absolute Hardness ! Image | 1 Talc (Mg3Si4O10(OH)2) 1 2 Gypsum (CaSO4·2H2O) 2 3 Calcite (CaCO3) 9 4 Fluorite (CaF2) 21 5 Apatite (Ca5(PO4)3(OH-,Cl-,F-) 48 6 Feldspar (KAlSi3O8) 72 7 Quartz (SiO2) 100 8 Topaz (Al2SiO4(OH-,F-)2) 200 9 Corundum (Al2O3) 400 10 Diamond (C) |}
Hardness is the measure of how easily a mineral is scratched.
According to the Mohs scale of hardness, Diamond has a hardness of 10 and Quartz has a hardness of 7. Any mineral with a hardness greater than 7 can scratch quartz and diamond can scratch any mineral with a hardness less than 10. Corundum (hardness of 9) and Topaz (hardness of 8) are two examples of minerals that can scratch quartz but not diamond.
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.