Graphite Fayos J Journal of Solid State Chemistry 148 (1999) 278-285 Possible 3D carbon structures as progressive intermediates in graphite to diamond phase transition Note: mathematical model, phase: gra_crbl43_bo _database_code_amcsd 0013982 4.048 4.885 6.495 90 90 90 Pban atom x y z C1 .0460 .1352 .2528 C2 .3379 .1653 .1417