2007-01-05 09:18:03 · 17 answers · asked by DGUK17 1 in Science & Mathematics ➔ Earth Sciences & Geology
diamonde
2007-01-09 09:19:45 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I was always told that a diamond is the hardest natural rock.
2007-01-05 17:25:24 · answer #2 · answered by mandm 5 · 0⤊ 0⤋
Everyone is saying diamond, but diamond is not a rock. It is a mineral.
Rocks are mixture of minerals.
I actually don't know the answer to your question of which rock is actually the hardest. I would guess some sort of metamorphic rock (rocks formed from intense heat and pressure of the earth)
2007-01-05 18:16:10 · answer #3 · answered by Ms. K. 3 · 0⤊ 0⤋
I dont know if you consider this a rock, but the hardest thing in the world are diamonds. That is why when doun a hardness test of new elements they use a diamond to scratch the surface of whatever it is that is being tested. No man made metal is harder than diamonds to date
2007-01-05 17:20:39 · answer #4 · answered by kkcoz 2 · 0⤊ 0⤋
As with Yoda, I went to wiki--
Diamond is the hardest known natural material (third-hardest known material below aggregated diamond nanorods and ultrahard fullerite). Diamonds can be scratched only by other diamonds, Borazon, ultrahard fullerite, or aggregated diamond nanorods, which also means they hold a polish extremely well and retain luster. You can only cut a diamond with another diamond.
2007-01-05 17:28:27 · answer #5 · answered by john smith 4 · 0⤊ 0⤋
Diamond is not a rock, but a mineral. The hardest rock is some sort of granite-type igneous rock derivative. May be quartz monzonite?
2007-01-06 18:10:48 · answer #6 · answered by BigOil 1 · 0⤊ 0⤋
if you eliminate volcanic magma and mineral deposits you are left with GRANITE (sorry should have listed volcanic glass instead of magma since granite was formed from magma )
and even tho diamond is popular and is technically 'rock' it is considered a mineral deposit as opposed to the building blocks of the continents like granite or limestone and is found within other materials ( that is why it is a deposit ) not as a layer of rock ( there is no diamond strata )
2007-01-05 17:23:13 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Dense Chalk
2007-01-05 17:20:25 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Thats just a sick question man!
Diamond
2007-01-05 17:25:45 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Diamonds are forever
2007-01-05 17:25:14 · answer #10 · answered by btamlind 2 · 0⤊ 0⤋
a diamond, its a 10 on the mohs scale
2007-01-05 17:20:22 · answer #11 · answered by gitmesumwaffles 1 · 1⤊ 0⤋