02.12.2009 Most hardness testers are for measuring metals and won't work on rocks (yes, I've tried). Update: Thank you for your answer. Moh's scale is a relative hardness scale. I need an absolute hardness. Moh's scale is a relative hardness scale. I need an absolute hardness.
Basically, a scale for ranking the "hardness" of music, "hardness" being the perceived quality that separates rock from pop, Hard Rock from soft rock, Heavy Metal from Hard Rock, Death Metal from classic metal, noise from Grindcore and industrial metal, and so
Simply put, the Rockwell hardness test is a method of measuring the hardness of materials. The Rockwell hardness scale is typically administered to characterize the hardness of metals, such as thin steel, cemented carbides, lead, aluminum, zinc, copper alloys, titanium, and iron.
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Quick Answer. Granite is a 6 to 7 on the Mohs hardness scale. The Mohs hardness scale was developed by the German mineralogist Friedrich Mohs to determine the hardness of a mineral based on whether it can be scratched by a substance of known hardness.