2006-08-17 15:40:29 · 18 answers · asked by Jiremi 3 in Science & Mathematics ➔ Earth Sciences & Geology
Aggregated diamond nanorods, followed by synthetic diamond.
2006-08-17 15:49:38 · answer #1 · answered by Mark V 4 · 0⤊ 0⤋
It depends as what you are referring to. If gems,try moissanite. It has a hardness of about 9.5. It's between corumdum(rubies,sapphires;which are 9 on the Moh''s Scale),diamonds are 10-the HARDEST NATURAL SUBSTANCE known to man. Man has attempted numerous years,but no man has ever produced a diamond. Only nature has that distinction. Many czs may come close in apperance,but never in hardness. If you're speaking of metals,I would venture titanium. But scientists say that spider's silk out rivals in strength anything man has ever produced.
2006-08-17 15:56:28 · answer #2 · answered by dennis p 1 · 0⤊ 0⤋
Moissanite is the hardest man made substance and is the second hardest gemstone known to man.
2006-08-17 16:01:28 · answer #3 · answered by j123 3 · 0⤊ 0⤋
Butter
2006-08-21 03:20:53 · answer #4 · answered by jonlon73 2 · 0⤊ 0⤋
Diamond.
2006-08-17 15:45:29 · answer #5 · answered by BigPappa 5 · 0⤊ 1⤋
polyyne, a superhard molecular rod comprised of acetylene units - that resists 40 times more longitudinal compression than a diamond.
2006-08-17 16:03:32 · answer #6 · answered by Dennis A 1 · 0⤊ 0⤋
The newest method for making manmade diamonds.
2006-08-17 15:49:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Fullerene, Or the common name Carbon nanotubes. Harder than diamond
2006-08-17 16:25:25 · answer #8 · answered by Anonymous · 1⤊ 0⤋
Jack Lord's hair.
2006-08-17 15:54:51 · answer #9 · answered by szydkids 5 · 1⤊ 0⤋
Unobtanium...
No..
Seriously..
Diamond...
2006-08-17 19:00:50 · answer #10 · answered by Anonymous · 0⤊ 0⤋