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
TOPAZ project along with Faculty of Social Studies at Masaryk University and Philosophical Faculty of Palacký University, Olomouc, (through programme YoungPower). Trainees come also from Faculty of Social Science at Charles University in Prague or Metropolitan University Prague. Partners of TOPAZ are: TOPAZ TOPAZ is a think-tank of the Czech political party TOP 09, which is its founder. It was established in April 2012 as a civic group, today it operates as an association. Mission of TOPAZ is to transmit conservative ideas to wider partisan and non partisan public and to continue in educational activities that were coordinated by TOP 09