Hi there,
I have a true or false question about the minerals.
Diamond and graphite are both polymorphs of pure silicon . Is it true or false.
thanks
2007-02-21 20:35:22 · 2 answers · asked by Serdar N 1 in Science & Mathematics ➔ Earth Sciences & Geology
FALSE
Diamond and graphite provide a vivid demonstration of the importance of crystal structure to mineral properties. Both are composed of carbon, but differ in the bonding and arrangement of the atoms. Diamond is used as an abrasive because of its great hardness, whereas graphite is used as a lubricant. Diamond is the high pressure polymorph, and hence has the denser structure (specific gravity = 3.52 versus 2.23 for graphite).
2007-02-21 23:48:35 · answer #1 · answered by SheTigger2 4 · 0⤊ 0⤋
False. They are polymorphs of carbon.
2007-02-22 07:48:37 · answer #2 · answered by U.K.Export 6 · 0⤊ 0⤋