Ultrahard fullerite (1421 bytes)
1: ...jpg|thumb|325px|right|Scratch caused by ultrahard fullerite on diamond]]
2: ... harder than diamond, less than that of ultrahard fullerite.

Fullerite (698 bytes)
1: '''Fullerites''', or '''Polymerized Single Walled NanoTubules'...

Boron carbide (5091 bytes)
147: ... [[diamond]], and [[Ultrahard fullerite|ultrahard fullerite]].

Boron nitride (2290 bytes)
69: ...t materials known, behind diamond and [[ultrahard fullerite]]. It is widely used for grinding and as material...

Diamond (36695 bytes)
59: ...scratched with an [[Ultrahard fullerite|ultrahard fullerite]] tip. A Type IIa diamond (111) has a hardness va...

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