REG - BlueRock DiamondsPLC - Increased Resource Statement

Bluerock DiamondsAnnouncement

05/02/2021 10:30

RNS Number : 1627O
  
BlueRock Diamonds PLC
  
05 February 2021
  
 

BlueRock Diamonds PLC / AIM: BRD / Sector: Natural Resources
5 February 2021
BlueRock Diamonds PLC ('BlueRock' or the 'Company')
Increased Resource Statement
 
BlueRock Diamonds PLC, the AIM listed diamond producer, is pleased to announce an updated Resource Statement at its Kareevlei Diamond Mine ('Kareevlei') in the Kimberley region of South Africa, the provisional figures for which were released in December 2020.
 
Overview
·    49% increase in net tonnes to 10,368,300
·    53% increase in net carats to 516,200 
·    19% of resource upgraded to Indicated Resources
 
BlueRock Executive Chairman, Mike Houston, said, "The Resource Statement confirms the provisional figures released in December 2020 and based on our planned production of 1 million tonnes per annum, provides a minimum 10-year life of mine.   The Board is confident that the Resource will increase further once more work is completed on KV3, our largest pipe, where at present only 40% of this pipe's volume is included in resource. 
 
"I am pleased to note that the Competent Person, as a result of the mining to date, felt it appropriate to upgrade a significant tonnage of our resource from Inferred to Indicated. This recategorization further strengthens our confidence in Kareevlei's future."
 
DETAILS
 
Overall Increase in the Resource



 


Nov '18(1)


Jan '21(2)


 Increase




Tonnes


7,700,000


 


 




Total mined tonnes to date


-735,000


 


 




Net Tonnes


6,965,000


10,368,300


49%




Carats


367,000


 


 




Mined carats since November 2018


29.982


 


 




Net Carats


337,018


516,200


53%




CPHT


4.83


5.0


4%



(1) November 2018 resource statement
(2) January 2021 resource statement
 
Detailed Results of the Updated Resource Statement



 


Tonnes


Carats


Grade (cpht)




 


Nov '18


Jan '21


Nov '18


Jan '21


Nov '18


Jan '21




Indicated Resources


 


 


 


 


 


 




KV1


0


1,131,500


0


69,500


0


6.1




KV2


0


867,200


0


39,100


0


4.5




Total Indicated


 


1,998,700


0


108,600


0


5.4




Inferred Resource


 


 


 


 


 


 




KV1


1,561,400


2,555,700


97,000


155,500


6.2


6.1




KV2


1,909,700


1,478,500


86,600


65,800


4.5


4.5




KV3


3,629,200


3,629,200


152,000


152,000


4.2


4.2




KV5


644,300


706,200


31,400


34,300


4.9


4.9




Total Inferred


7,744,600


8,369,600


367,000


407,600


4.7


4.9




 


 


 


 


 


 


 




Grand Total


7,744,600


10,368,300


367,000


516,200


4.7


5.0



 
The full report will be available on the Company's website at www.bluerockdiamonds.co.uk.
 
Qualified Person Review
The information in this announcement has been reviewed by Dr. John Andrew Grills of Z Star Mineral Resource Consultants (Pty) Ltd, a recognised Competent Person for diamonds (B. Sc. Ph. D., Pri. Sci. Nat. 400426/04). Dr. John Andrew Grills consents to the inclusion of the Mineral Resource information in the form and context in which it appears.
 
The information in this announcement has also been reviewed by Dr. Jock Robey who is a Fellow of the Geological Society of South Africa and has a Ph. D. from the University of Cape Town and a M. Sc. in Geology from Rhodes University with over 40 years working experience in Various Kimberlites.  Dr. Robey worked for De Beers as a kimberlite petrologist specialising in kimberlite mapping logging and petrology and has been a Consultant to Kareevlei for several years. Dr. Robey consents to the inclusion of the Mineral Resource information in the form and context in which it appears.
 
Market Abuse Regulation (MAR) Disclosure - Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement.
 
ENDS
 



BlueRock Diamonds PLC
Mike Houston
David Facey, FD


mhouston@bluerockdiamonds.co.uk
dfacey@bluerockdiamonds.co.uk




SP Angel (NOMAD and Broker)
Stuart Gledhill / Caroline Rowe


 
contact@spangel.co.uk




St Brides Partners Ltd (Financial PR)
Isabel de Salis / Cosima Akerman


 
info@stbridespartners.co.uk



 
Notes to editors:
BlueRock Diamonds is an AIM-listed diamond producer which operates the Kareevlei Diamond Mine near Kimberley in South Africa which produces diamonds of exceptional quality and ranks in the top ten in the world in terms of average value per carat. The Kareevlei licence area covers 3,000 hectares and hosts five known diamondiferous kimberlite pipes.
 
Glossary:



Cpht


A measure of diamond grade in carats per hundred tonnes.




Grade


in economic geology, the term is used to express the relative quantity of an ore in a rock or unconsolidated sediment mass; in diamond exploration it is commonly expressed as carats per hundred tonnes (cpht) or carats per cubic metre (c/m3)




Inferred Mineral Resource


that part of a mineral resource for which tonnage, grade and mineral content can be estimated with a low level of confidence. It is inferred from geological evidence and assumed but not verified geological and/or grade continuity. It is based on information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes which may be of limited or uncertain quality and reliability




Indicated Mineral Resource


 that part of a Mineral Resource for which quantity, grade (or quality), densities, shape and physical characteristics are estimated with sufficient confidence to allow the application of Modifying Factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. 




Kimberlite


A type of potassic volcanic rock typically found as pipe structures that may contain
diamonds.




SAMREC


The South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral
Reserves.



 

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