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Botswana Diamonds intersects 12 kimberlites at SA project

01 march 2019

botswana_diamonds_logo.pngBotswana Diamonds, which completed drilling on the farm Hartbeesfontein, as part of its first phase of the intensification drilling programme on Thorny River project in South Africa, has intersected 12 kimberlites from 18 holes drilled.
It said a bulk sampling target of 1.5 km of kimberlite fissure intersection were also identified. 
The second phase of the drilling programme taking place on the farm Frischgewaagt had commenced with three holes drilled so far, all of which intersected kimberlite, said Botswana Diamonds.  
The third hole intersected 4.5m of kimberlite fissure down the hole, which was the thickest section intersected to date on the project.  
This hole also produced a mantle xenolith (eclogite) composed of clinopyroxene and garnet, which was indicative of high diamond content.
“The third and final phase of the drilling programme will commence once a detailed gravity survey has been concluded over two potential kimberlite blows on the same property,” it said.
The purpose of this drilling programme was to enable detailed planning for a bulk sampling programme, which would start on completion of drilling activities and after the necessary regulatory approvals have been received within the next two months.
Botswana Diamonds also said that refurbishment was currently underway of a nearby diamond processing plant to process the bulk sample kimberlite.
The nearby and worked-out Marsfontein diamond mine was host to eluvial diamond deposits running at grades of 1,433 cpht.

Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished