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I found this weird rock that looks like kryptonite or something,and it cuts glass.

2007-11-12 09:40:04 · 4 answers · asked by nite_al_n_da_bay 1 in Science & Mathematics Earth Sciences & Geology

4 answers

Window glass has a hardness of 5.5 on the Moh's hardness scale, and so could be scratched by feldspar, quartz, topaz, corrundum and diamond. Nearly all precious and semi-precious gems are harder than glass, so scratching glass is no test for a diamomd.
Here's a reference to Moh's scale:
http://en.wikipedia.org/wiki/Mohs_scale

2007-11-12 10:20:56 · answer #1 · answered by AndrewG 7 · 0 0

No, any rock with a hardness greater then that of glass will cut it. If looking on Mohs scale anything above a 7 I think will do the trick

2007-11-12 09:58:49 · answer #2 · answered by ? 6 · 0 0

No.....many rocks will cut glass

2007-11-12 09:56:12 · answer #3 · answered by tooldaddy2003 5 · 0 0

NOOOOO there are tons of other rocks and minerals that have the ability to cut glass
(believe me I know...experiments)....

2007-11-12 09:48:02 · answer #4 · answered by Ms.Justice 1 · 1 0

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