Mineralogy classified into density (often given as specific gravity); measures of mechanical cohesion (hardness, tenacity, cleavage, fracture, parting); macroscopic visual properties (luster, color, streak, luminescence, diaphaneity); magnetic and electric properties; radioactivity and solubility in hydrogen chloride (). "Hardness" is determined by comparison with other minerals. In the Mohs scale, a standard set of minerals are numbered in order of increasing hardness from 1 (talc) to 10 (diamond). A harder mineral will scratch a softer, so an unknown mineral can be placed in this scale by which minerals it scratches and which scratch it. A few minerals such as calcite and kyanite
Mohs surgery rate include the following. Mohs surgery is not the answer for all skin cancers. In reality, Mohs micrographic surgery is nothing more than frozen section histology using a unique peripheral margin control tissue processing technique. There is nothing magical about its cure rate or why years of training is required. When compared to many other described peripheral margin control tissue processing techniques the end result is the same, allowing for the complete examination of 100% of the surgical margin. The method is unique only in that it is a simple way to handle soft, hard-to-cut tissue. Once learned, any pathologist