2007-05-09 01:44:12 · 3 answers · asked by chris p 1 in Science & Mathematics ➔ Earth Sciences & Geology
Try posting your question on this site:
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2007-05-09 02:16:07 · answer #1 · answered by Curiosity 7 · 0⤊ 0⤋
I couldn't find any information about a property of rocks called "tumbling index." But if you're talking about the hobby activity of rock tumbling, in which stones are polished and smoothed, then you might mean the "number" or "rating" of the abrasive grit that is used, which usually is made from ground silicon carbide. In that case, a larger rating refers to a finer grit, i.e., smaller particles.
2007-05-09 02:14:23 · answer #2 · answered by DavidK93 7 · 0⤊ 0⤋
I dont know but maybe you mean the bond work index. Type that in to ggogle and see what you get.
2007-05-09 02:35:27 · answer #3 · answered by cmsrmt 2 · 0⤊ 0⤋