2007-03-12 06:12:51 · 10 answers · asked by krusty_blue_spaz 5 in Science & Mathematics ➔ Earth Sciences & Geology
Natural and Material are 2 vague terms. So any answer you get is going to up for argument.
In a chemical sense Material can mean a compound or a single element.
If you meant to ask: What is the most valuable rare element that occurs in nature(non lab) that is not part of a fusion/fission event?
Then I would say Lu but again...I don't know 100% what you are asking about.
2007-03-12 06:27:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Astatine. Less than 75 mg in earth's crust
2007-03-12 06:34:32 · answer #2 · answered by digo 2 · 0⤊ 0⤋
I'm going with element 43, technetium, as the rarest.
http://www.chemsoc.org/viselements/pages/technetium.html
.
2007-03-12 06:25:30 · answer #3 · answered by tlbs101 7 · 0⤊ 0⤋
I think its diamond. But gases too, it takes more than a century to dig and find a gasoline source. It only found on seabeds.
2007-03-12 06:47:53 · answer #4 · answered by Smoochum 2 · 0⤊ 2⤋
Dilithium.
2007-03-12 06:15:35 · answer #5 · answered by Gravity 4 · 0⤊ 3⤋
common sense
2007-03-12 06:15:16 · answer #6 · answered by Campbell Gramma 5 · 2⤊ 0⤋
Francium (?) I know its very rare, but I don't know if its the most rare.
2007-03-12 06:16:50 · answer #7 · answered by eggman 7 · 0⤊ 0⤋
a US president
2007-03-12 06:21:30 · answer #8 · answered by nileshpatel 2 · 0⤊ 0⤋
MY WIFE WOULD YOU TELL YOU MY LOVE SEED! HEHE...CAUSE SHE HARDLY VENTURE HER EYES ON IT.
ANYWAY, TO YOUR PONDERING MIND.
I THINK IT MAY BE THE DIAMOND...THAT WHY IT COST AN ARM AND TORSO TO BUY ONE.
2007-03-12 06:15:50 · answer #9 · answered by Annal 3 · 0⤊ 3⤋
brains.
2007-03-12 06:15:23 · answer #10 · answered by scruffy 5 · 0⤊ 0⤋