2006-10-19 15:32:03 · 16 answers · asked by ssdud2@sbcglobal.net 1 in Science & Mathematics ➔ Earth Sciences & Geology
A diamond, which is pure Carbon, and a 10 on the hardness scale, if you know anything about Mineralogy. The second hardest would be Carborundum, which is made synthetically, but has the same composition as Moissenite, ( I might have spelled it wrong ), which is found naturally in meteorites.
2006-10-19 17:51:09 · answer #1 · answered by Wee W 3 · 1⤊ 1⤋
It depends how you measure hardness. If you hit a diamond with a metal hammer the diamond will shatter. There are always weaknesses in the crystal lattice and the crystal will split along cleavage planes. Hardness is often measured by the resistance to scratching and in this case diamond is the hardest natural substance.
2006-10-21 12:08:28 · answer #2 · answered by Nic 1 · 0⤊ 0⤋
Diamond
2006-10-19 15:38:33 · answer #3 · answered by bandl84 3 · 0⤊ 0⤋
Textbook answer would be DIAMOND.
Physicists in Germany have created a material that is harder than diamond. Natalia Dubrovinskaia and colleagues at the University of Bayreuth made the new material by subjecting carbon-60 molecules to immense pressures. The new form of carbon, which is known as aggregated diamond nanorods, is expected to have many industrial applications (App. Phys. Lett. 87 083106).
Aloha
2006-10-19 15:34:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Diamond is the hardest known natural material
2006-10-19 22:58:03 · answer #5 · answered by Geo06 5 · 0⤊ 0⤋
Diamond.
2006-10-23 15:31:51 · answer #6 · answered by George K 6 · 0⤊ 0⤋
A Diamond.
2006-10-19 15:38:50 · answer #7 · answered by Anonymous · 0⤊ 0⤋
the hardest natural substance is the diamond. learned it last yaer in fourth grade =]
2006-10-21 08:33:00 · answer #8 · answered by hello. 1 · 0⤊ 0⤋
certainly diamond. they are one of the naturally occurring hardest substances but other compounds such as carborundum(silicon carbide) is more harder than diamond.
2006-10-20 01:00:30 · answer #9 · answered by anurodh_hotwave 1 · 0⤊ 0⤋
A diamond.
2006-10-19 15:34:01 · answer #10 · answered by shorty0844 1 · 0⤊ 0⤋