Allotropes of carbon dispersion of light of diamond make it useful for both industrial applications and jewelry. Diamond is the hardest known natural mineral. This makes it an excellent abrasive and makes it hold polish and luster extremely well. No known naturally occurring substance can cut (or even scratch) a diamond, except another diamond. The market for industrial-grade diamonds operates much differently from its gem-grade counterpart. Industrial diamonds are valued mostly for their hardness and heat conductivity, making many of the gemological characteristics of diamond, including clarity and color, mostly irrelevant. This helps explain why 80% of mined diamonds (equal to about 100
The Hardest Thing (Toše Proeski song) Top 20 music chart and at #3 on the Croatian Top 20 Pop-Rock singles chart. The Hardest Thing (Toše Proeski song) "The Hardest Thing" is the first posthumous single released by Macedonian pop musician, Toše Proeski, from his English-language album of the same name, "The Hardest Thing". The song premiered on the 12th annual Croatian Radio Festival on 31 May 2008. The music video for the song was created by Slovenians; director Jani Černe, Matej Kavčnik and Igor Nardin from seven hours of pre-recorded material. It premiered on MTV Adria on 1 June 2008 and was subsequently shown on MTV