Below you can find the Around 1820 friedrich mohs introduced the standard scale for measuring the hardness of these Jeopardy Words Answer. The answer to Around 1820 friedrich mohs introduced the standard scale for measuring the hardness of these has 8 letters. This clue belongs to the Science category and is part of Jeopardy Word Level 1461. If you scroll near the bottom you will find other clues and answers part of level 1461