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Bort




Bort or boart is a term used in the diamond industry to refer to shards of 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. 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.

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References

  • [1] accessed 20 Mar 2005
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Bort". A list of authors is available in Wikipedia.
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