bort Englisch Deutsch:
bort Definition:
- Bort or boart is a term used in the diamond industry to refer to shards of non-gem-gradequality diamonds. In the manufacturing and heavy industries, "bort" is used to describe dark, imperfectly formedcrystallized diamonds of varying levels of opacity. The lowest grade, "crushing bort", is crushed by steel mortars and used to make industrial-grade abrasive grits. Small bort crystals are used in drill bits. The Democratic Republic of the Congo provides 75% of the world supply of crushing bort.
| Bort (n.) Imperfectly crystallized or coarse diamonds, or fragments made in cutting good diamonds which are reduced to powder and used in lapidary work. |