Mineral necessarily constant for all sides, which is a function of its structure; crystallographic weakness renders some directions softer than others. An example of this property exists in kyanite, which has a Mohs hardness of 5½ parallel to [001] but 7 parallel to [100]. The most common scale of measurement is the ordinal Mohs hardness scale. Defined by ten indicators, a mineral with a higher index scratches those below it. The scale ranges from talc, a phyllosilicate, to diamond, a carbon polymorph that is the hardest natural material. The scale is provided below: Lustre indicates how light reflects from the mineral's
American College of Mohs Surgery College of Mohs Surgery offers professional recognition to physicians proficient in Mohs surgery. The ACMS also offers opportunities for continuing education, as well as an annual meeting with speakers and industry exhibitors. The ACMS aims to "improve the clinical and aesthetic outcomes of Mohs surgery" by requiring physicians to undergo a rigorous fellowship training process as well as ongoing education. The ACMS also allows patients to access information and locate credentialed physicians throughout the United States. American College of Mohs Surgery The American College of Mohs Surgery (abbreviated as ACMS) is a membership-based organization of surgeons who are fellowship-trained in