Polycrystalline aggregates of bort-type diamond with inclusions of garnet and rutile from the Mir pipe have delta C-13 of -3.7 to -22.9 parts per thousand PDB. The bort of variety VIII (Yu.L. Orlov's classification) differs ...
A comparative study of the morphology and real structure of microdiamonds from the metamorphic rocks and alluvial placer of the Kokchetav Massif and from the Udachnaya kimberlite pipe and West-Australian alluvial placers ...