Research & Medical Tourette Association Annual Scientific Meeting The Tourette Association of America will convene its annual scientific meeting on Thursday, April 20, 2017, at the Bethesda North...
Bort-like heavily twinned diamond from Congo. Bort or boart is a term used in the diamond industry to refer to shards of non-gem-grade/quality diamonds. In the manufacturing and heavy industries, bort is used to describe dark, imperfectly formed/crystallized diamonds of varying levels of opacity.
A 101.29-carat (20.258 g) antique cushion-shaped brilliant fancy vivid yellow diamond which is believed to have been found in the Premier mine in the South African Republic. It got the name Allnatt after one of its owners, Major Alfred Ernest Allnatt.