mohs-scale Solutions Scale of hardness of minerals based on resistance to scratching has 1 entries with similar clues 13-letter wordsbrinell-scaleScale of hardness of metals based on resistance to indentation from the pressure of a standard steel ball
Solutions Scale of hardness of minerals based on resistance to scratching has 1 entries with similar clues 13-letter wordsbrinell-scaleScale of hardness of metals based on resistance to indentation from the pressure of a standard steel ball