REG-Karelian Diamond Res.: Analysis of Kimberlite boulder in Lahtojoki south

Karelian Diamond ResourcesAnnouncement

06/10/2021 07:05

Karelian Diamond Resources plc

(“Karelian Diamonds” or “the Company”)

6 October 2021

RESULTS OF ANALYSIS OF KIMBERLITE BOULDER IN LAHTOJOKI SOUTH
* Microprobe analyses of thin sections of kimberlite boulder indicates
potential for the presence of diamonds
* Analysis of grains from the boulder indicates good potential diamond
survival
* The results are further confirmation that the kimberlite boulder does not
come from the Lahtojoki Diamond deposit
Karelian Diamond Resources plc (AIM: KDR) is pleased to announce that results
from analysis undertaken by the Geological Survey of Finland (the “GTK”)
of thin sections from a kimberlite boulder recovered from the Company’s
Lahtojoki South exploration area (announced by the Company on 5 March 2021)
indicate potential for the presence of diamonds from the kimberlite source.

Four polished thin sections were made from the kimberlite boulder by a
specialist laboratory in Canada, Vancouver Petrographics. Scanning electron
microscope (“SEM”) and electronic probe micro analyser (“EPMA”)
analyses of the thin sections were undertaken by the GTK.

The data demonstrates that the kimberlite has sampled eclogitic and
perridotitic rocks that are known to be diamondiferous in other kimberlites
from the area.

The GTK report also states that the compositional data of picroilmenite grains
from the boulder are “outstanding” and “an important indicator for good
potential diamond survival”.

Pressure and temperature data indicate that the kimberlite has sampled within
the diamond stability field.

The GTK report also highlights that chromites, which are relatively rare in
the Lahtojoki kimberlite diamond deposit, appear to be more common in the
boulder and is therefore further confirmation that the boulder does not derive
from the Lahtojoki deposit. The report further noted that garnets, with high
chromium oxide “wehrlite” compositions, which are not seen in the
Lahtojoki kimberlite, are present.

This release has been approved by Kevin McNulty PGeo, who is a member of the
Company’s technical staff and holds a BSc/MSc in Geology and Remote Sensing,
in accordance with the guidance note for Mining, Oil and Gas Companies issued
by the London Stock Exchange in respect of AIM Companies, which outlines
standards of disclosure for mineral projects.

Professor Richard Conroy, Chairman of Karelian Diamond Resources plc,
commented:

“The results from the GTK report, which has been commissioned by Karelian,
further confirm that the boulder is not from the Lahtojoki deposit and also
that the source of the boulder has excellent potential for diamonds being
present. This increases the possibility of there being additional diamond
potential in the Lahtojoki South exploration area.”

Further Information:

 Karelian Diamond Resources plc  Professor Richard Conroy, Chairman  +353-1-479-6180   
 Allenby Capital Limited (Nomad)  Nick Athanas / Nick Harriss        +44-20-3328-5656  
 First Equity Limited (Broker)  Jason Robertson                      +44-20-7330-1883  
 Lothbury Financial Services  Michael Padley                         +44-20-3290-0707  
 Hall Communications  Don Hall                                       +353-1-660-9377   

http://www.kareliandiamondresources.com



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