Hardest mineral starting with "E"?

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Hardest mineral starting with "E"?

What is the hardest mineral that starts with letter E. A crossword question cant fiqure out.

2007-03-12 15:17:10 · 2 answers · asked by myself 3 in Science & Mathematics ➔ Earth Sciences & Geology

Jeremy- I thought emerald but workmates all think that's a gem. I does fit though into spaces of crossword.

2007-03-12 22:16:17 · update #1

2 answers

What's the length of the entry? Any other crossings? I'll guess EMERY (a variety of corundum, the second hardest mineral where diamond is first) which has a Mohs hardness of 9 (hard enough to file nails).

2007-03-14 10:29:27 · answer #1 · answered by xwdguy 6 · 0⤊ 0⤋

Emerald? It has a hardness of 8. I don't know of any others harder than that starting with an'E'.

2007-03-12 22:39:58 · answer #2 · answered by Kelly M 4 · 0⤊ 0⤋