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 (album) The Hardest Thing (album) The Hardest Thing is the eight and final studio album by Toše Proeski and the first album to be released posthumously. It was released on 25 January 2009, shipping 120.000 copies to countries from former Yugoslavia. Thereafter, the album will be released to other countries within Europe. The album is distributed by Award Entertainment in the Republic of Macedonia and by City Records in Serbia. "The Hardest Thing" is also the first album by Toše Proeski to feature entirely non-Macedonian language songs, consisting mostly of English language material but also containing an Italian language track titled