Boron Parakhonskiy G, Dubrovinskaia N, Bykova E, Wirth R, Dubrovinsky L High Pressure Research 33 (2013) 673-683 High pressure synthesis and investigation of single crystals of metastable boron phases Note: epsilon-trigonal phase Locality: Synthetic _database_code_amcsd 0020600 5.5940 5.5940 12.0756 90 90 120 R-3m atom x y z Uiso B1 0 0 .5 .011 B2 .1626 .8374 .6413 .007 B3 .2255 .7745 .7805 .008 B4 0 0 .6192 .003