1. Mohs scale - Noun
2. Mohs scale - Proper noun
a scale of hardness of solids; talc is 0 and diamond is 10; ordering is determined by which substance can scratch another substance
Source: WordNetCommon, non-architectural grades of soapstone can just barely be scratched with a fingernail and are thus considered to have a hardness of 2.5 on the Mohs scale. Source: Internet
For example, if some material is scratched by apatite but not by fluorite, its hardness on the Mohs scale would fall between 4 and 5. American Federation of Mineralogical Societies. Source: Internet
Frequently, materials that are lower on the Mohs scale can create microscopic, non-elastic dislocations on materials that have a higher Mohs number. Source: Internet
Inland Lapidary On the Mohs scale, a streak plate (unglazed porcelain ) has a hardness of 7.0. Source: Internet
Minerals The Mohs scale of mineral hardness is based on the ability of one natural sample of mineral to scratch another mineral visibly. Source: Internet
Non-Destructive Testing Resource Center Usage Despite its simplicity and lack of precision, the Mohs scale is highly relevant for field geologists, who use the scale to roughly identify minerals using scratch kits. Source: Internet