Lonsdaleite static press or using explosives. It has also been produced by chemical vapor deposition, and also by the thermal decomposition of a polymer, poly(hydridocarbyne), at atmospheric pressure, under argon atmosphere, at . It is translucent, brownish-yellow, and has an index of refraction of 2.40 to 2.41 and a specific gravity of 3.2 to 3.3. Its hardness is theoretically superior to that of cubic diamond (up to 58% more), according to computational simulations, but natural specimens exhibited somewhat lower hardness through a large range of values (from 7 to 8 on Mohs hardness scale). The cause is speculated as being due
American College of Mohs Surgery The ACMS is open to physicians who have successfully completed advanced fellowship training in Mohs micrographic surgery, pathology, and reconstructive surgery. The ACMS currently has more than 1,300 member physicians. In 1995, an ancillary group called The American Society for Mohs Histotechnology was founded. The organization is composed of more than 375 non-physician laboratory technicians who process the slides evaluated during a Mohs procedure. The purpose of the ACMS is to "promote and advance high standards of patient care" with respect to Mohs surgery and other forms of cutaneous oncology through fellowship training, research, education, and public advocacy. The American