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Lucara Diamond Corp T.LUC

Alternate Symbol(s):  LUCRF

Lucara Diamond Corp. is a Canadian diamond mining company with a producing mine and exploration license in Botswana. It is an independent producer of large Type IIa diamonds from its 100% owned Karowe Diamond Mine in Botswana. The Karowe Mine is the focus of the Company's operations and development activities. Its 100% owned Karowe mine is a producer of large Type IIA diamonds, more than 10.8 carats, including the historic 1,758 Sewelo, the 1,109 carat Lesedi La Rona and the 813-carat Constellation.


TSX:LUC - Post by User

Bullboard Posts
Comment by nyonion Feb 06, 2020 3:44pm
124 Views
Post# 30653903

RE:RE:RE:RE:Looks like.....

RE:RE:RE:RE:Looks like.....The biggest DTC (deBeers) sieve size is number #23, which has circular apertures of 10.31mm.

The critical size for stones not passing this sieve is given as 9.2 carats.

In practice, diamonds are not regularly shaped so how they present to the aperture could affect if they go through or not.  eg long thin ones might go through end-on but not sideways.

It might be that 10.8ct was arbitrarily chosen as the cut-off as a result of statistical results on stones that don't pass sieve #23. 

Maybe someone else knows?
Bullboard Posts