Material properties of diamond these are known as ballas and are important to industry as they lack the cleavage planes of single-crystal diamond. Carbonado is a similar opaque microcrystalline form which occurs in shapeless masses. Like ballas diamond, carbonado lacks cleavage planes and its specific gravity varies widely from 2.9 to 3.5. Bort diamonds, found in Brazil, Venezuela, and Guyana, are the most common type of industrial-grade diamond. They are also polycrystalline and often poorly crystallized; they are translucent and cleave easily. Because of its great hardness and strong molecular bonding, a cut diamond's facets and facet edges appear the flattest and sharpest. A
What Do You Know About Rock 'N Roll? What Do You Know About Rock 'N Roll? What Do You Know About Rock 'N Roll? is the second studio album by Minneapolis shock rock band Slave Raider, released in the winter of 1988. It was the band's first album to be recorded for a major label. Despite snowballing success from a notoriously successful show at London's Marquee club, the album had little success outside of the bands dedicated fan base. After an extensive tour of London the group joined Tsangarides to record their sophomore effort. According to guitar player Nicci Wikkid, the band was impressed with Tsangarides' skills, but