2006-11-09 17:40:55 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
for minerals it's definitively the mohs scale. Talc = 2 Quartz = 8
But for some other substances such as Rubber or elastomer you could choose the Rockwell hardness (A or B), which is provided with a dart measurement.
So your question has to be more precise.
2006-11-09 18:29:55 · answer #1 · answered by cass3andre 3 · 0⤊ 0⤋
Brinnell scale or one of the Rockwell hardness scales, as in the Rockwell "C" scale or the "B" scale - depending on the hardness to be tested.
It's too complicated and in-depth to describe how they work here.
(Maybe someone else here will take the time).
2006-11-10 01:46:02 · answer #2 · answered by love_2b_curious 6 · 0⤊ 0⤋
This site is best:
http://www.efunda.com/units/hardness/convert_hardness.cfm?cat=Steel&HD=HRC
This explains it well:
http://www.galleries.com/minerals/hardness.htm
2006-11-10 01:52:49 · answer #3 · answered by Brendan R 4 · 0⤊ 0⤋
Mohs scale. Harder stuff has a bigger number.
2006-11-10 01:44:35 · answer #4 · answered by Strix 5 · 0⤊ 0⤋