Material properties of diamond to a very large kinetic energy barrier, diamonds are metastable; they will not decay into graphite under normal conditions. Material properties of diamond Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. Diamond is an optically isotropic crystal that is transparent to opaque. Diamond is the hardest naturally occurring material known. Yet, due to important structural weaknesses, diamond's toughness is only fair to good. The precise tensile strength of diamond is unknown, however strength up to 60 GPa has been observed, and it could be as
Mineral Historic District Mineral Historic District Mineral Historic District is a national historic district located at Mineral, Louisa County, Virginia. It encompasses 222 contributing buildings, 3 contributing sites, and 6 contributing structures in the town of Mineral. It includes a variety of residential, commercial, and institutional buildings built after the town was platted in 1890. Notable buildings include the Gibson House (1915), Turner House (c. 1915), Dr. H. J. Judd House (1906), Odd Fellows Hall (1894), former D.E. Bumpass Department Store, former Mineral Drug Store, Bank of Louisa (now Town Hall), C&O railroad depot (1880s), Mineral Crystal Ice Plant (c. 1925), Louisa County