Industry News

Collection of Mineral Hardness

author:dahua time:2017-04-01

In this text, we will give you the list of mineral hardness.

Mineral Name Molecular Formula Main element or oxide Mohs hardness
Name Content %
Iron Fe Fe 100 4.5
Magnetite Fe3O4 Fe 72.4 5.5-6.5
Hematite Fe2O3 Fe 70 5.5-6.5
Siderite FeCO3 Fe 48.2 3.5-4.5
Manganese Mn Mn 100  
Chromium Cr Cr 100 9
Chromite FeO.Cr2O3 Cr2O3 68 5.5-7.5
Vanadium V PbO 69.1 2.5-3.0
Vanadinite Pb5C1(VO4)3     2.5
Malachite CuCO3.Cu(OH)2 Cu 55.3 3.5-4.0
Dolomite (Ca Mg)CO3 CaO,MgO 48.9, 5.1 4
Calcite CaCO3 CaO 30.4 3.5-4.0
Magnesite MgCO3 MgO 56 3
Gypsum CaSO4.2H2O CaO,SO3 32.5,46.6 1.5-2.0
Orthoclase KalSi3O8 Al2O3 18.4 6.0-6.5
Albite NaAlSi2O8 Al2O3 19.5 6.0-6.5
White mica H2KAl3(SiO4)3 Al2O3 38.5 2.0-2.5
Talc H2Mg3(SiO3)4 Mg,Si 19.2,29.6 1.0-1.5
Kaolin H4Al2Si2O9 Al2O3 39.5 2.0-2.5
Graphite C C 100 1.0-2.0
Diamond C C 100 10

Luoyang Dahua is specialized in manufacturing various kinds of mineral crushing machine, including crushing machine, grinding machine, vibrating feeder, and vibrating screen, etc. We can supply the proper machine according to the materials characteristic to meet the customers' requirement.