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 Part (Blondie song) The Hardest Part (Blondie song) "The Hardest Part" is a 1979 song by the American new wave band Blondie. In North America, it was released as the second single from the band's fourth album "Eat to the Beat" (in Europe, "Union City Blue" was released as the second single). It was written by the group's principal songwriting partnership, Deborah Harry and Chris Stein. The single achieved minor success, reaching #84 and #86 on the Billboard Hot 100 and RPM 100 Singles respectively. The song describes an armored car robbery. The title refers to the "hardest part" of the plan -