Comments on: Diamond is NOT the Hardest Material (Who Knew?)

By: Nyte

Nyte — Wed, 26 Oct 2011 16:55:47 +0000

lonsdaleite is harder and naturally occurring and formed when meteorites containing graphite strike the Earth.

By: freepizza

freepizza — Wed, 10 Aug 2011 13:35:55 +0000

Does anyone know what the max temperature of untrahard fullerite can be before the substance structure breaks down?

By: Ishan

Ishan — Tue, 15 Mar 2011 15:48:23 +0000

whoa

But, these materials are synthetic. Diamond still remains the hardest naturally occuring material.

By: What is hardest material? - Quora

What is hardest material? - Quora — Fri, 22 Oct 2010 11:30:18 +0000

[...] as the indenter, they have a H=310GPa while the hardest diamond face, <111>, has H=167GPa.http://blog.adamnash.com/2007/05…http://en.wikipedia.org/wiki/Agg…My interpretation of all this is that ADNRs are hardest, but the [...]

By: Pauline

Pauline — Mon, 04 Jan 2010 11:02:42 +0000

I read the article on Superhard Materials on Wikipedia, I guess it got updated again “Rhenium diboride was once thought a superhard material,[23] but it is not. Its hardness (HV ~ 22 GPa[14]) is much lower than that of diamond and is comparable to that of tungsten carbide, silicon carbide, titanium diboride or zirconium diboride.” so um yeah….
You see, I was just bored today and searched up “diamond cutting” on Wiki because I was bored and wondered how do they cut it if it’s the hardest things on the planet. One thing led to another, diamonds to gemstones, gemstones to star saffires, star saffires to star rubies and star rubies to hardness on the Mohs scale (you see how much time I had?) and then I found out that there’s actually something harder than diamond!
And I remember talking the other day, telling my little brother (5) that diamond is the hardest substance known to man…now I have to contradict myself! But it’s big news (though it was on the news since 2005) so I can act smart in front of my friends again! Though the name is quite hard to remember…

By: Blancpain Mens Chronograph Owner

Blancpain Mens Chronograph Owner — Mon, 23 Mar 2009 20:15:12 +0000

As a UK-based luxury jewelry fan, I found your blog on google and read a few of your other jewelry posts. I just added you to my Google News Reader. Keep up the good work. Look forward to reading more from you in the future.

By: Jay

Jay — Sat, 16 Feb 2008 05:45:13 +0000

I just had an argument about this with my friend (who argued that diamonds were the hardest) and I’m happy to have been proven right. No sense in being smug about my victory though, I only learned about it about the same time you did.

Mind if I link to this page from my site?