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 Fresh Hell Is This? What Fresh Hell Is This? What Fresh Hell is This? is the fourth studio album by Art Bergmann, released in 1995 on Epic Records. The album gets its name from a quotation by American wit Dorothy Parker. The album was written primarily while Bergmann was in rehab, recovering from his prior battles with drug addiction. In its year end poll of its newspapers' music critics, Southam Newspapers named the album as one of the ten best albums of 1995, with "London Free Press" critic Ian Gillespie lauding Bergmann as "a Canadian rock genius, doomed to hover around the edges of