Orapa AK10 Kimberlite Mineral Chemistry Assessment Indicates +50 Carat Diamond Potential
28 Novembre 2018 - 2:30PM
Pangolin Diamonds Corp. (“Pangolin” or the
“Company”) (TSX-V: PAN) is pleased to announce the results of an
AK10 kimberlite indicator mineral chemistry classification by CF
Mineral Research Ltd., Kelowna, Canada. Pangolin has been granted
the sole and exclusive option to earn up to a 75% interest in the
Orapa AK10 kimberlite (see news July 17, 2018).
Highlights Include:
- +50 carat diamond potential;
- Positive results from 8,969
individual kimberlite indicator mineral analyses;
- 12.6% of clinopyroxenes, 16.3%
garnets and 9.5% spinels are related to diamond inclusion
chemistry;
- Karowe Mine 4.4 km away and
infrastructure including power and roads is well established;
and
- A 500 tonne mini-bulk sample
scheduled to commence Q1 2019 to confirm diamondiferous character
of the kimberlite.
A database of mineral chemistry analyses from
the Orapa AK10 kimberlite consisting of 8,969 analyses of
individual kimberlite indicator minerals (KIMs) were submitted to
CF Mineral Research for classification using their proprietary
classification scheme for KIMs to assess the diamond potential of
the Orapa AK10 kimberlite.
A total of 1,908 clinopyroxene analyses were
classified. The result of the classification found that 12.6% of
the clinopyroxenes, both eclogitic and peridotitic, are associated
with a derivation from the diamond stability field. The mineral
chemistry of 15.4% of these diamond inclusion type clinopyroxenes
is consistent with the chemistry of clinopyroxe diamond inclusions
recovered from +50 carat diamonds. This result is consistent with
the close spatial association with the large stone producing Karowe
Mine of Lucara Diamond Corp. which is a mere 4.4 km distant.
The classification of 4,066 garnets resulted in
16.3% of the garnets, both peridotitic and eclogitic, having
mineral chemistry consistent with a derivation from the diamond
stability field. The majority of these garnets are derived from the
lherzolitic mantle environment, consistent with the presence of
clinopyroxes from the diamond stability field.
The number of spinels with greater than 45 wt%
Cr2O3 totalled 1,050. It was found that 9.5% of these chrome-rich
spinels had a mineral chemistry similar to spinels recovered as
diamond inclusions worldwide. These diamond inclusion spinels are
derived from the harzburgitic environment, similar to the source of
the G10 garnet population in the Orapa AK10 garnet suite.
The KIMs classification results indicate that
the Orapa AK10 kimberlite has sampled several source areas
(lherzolitic, harzburgitic and eclogitic) in the diamond stability
field. A significant proportion of the clinopyroxenes are similar
in chemical composition to clinopyroxenes extracted as diamond
inclusions from +50 carat diamonds.
Dr. Leon Daniels stated, “As a co-founder of
African Diamonds where I identified the potential of the AK6
kimberlite (Karowe Mine) I am very excited about the positive
classification of the KIMs of the AK10 kimberlite to potentially
host large +50 carat Type 11a diamonds. This is a step in the right
direction for the Company to have a two prong strategy of
commencing with a 500 tonne mini-bulk sample of the AK10 kimberlite
to confirm the reported diamondiferous character of AK10,
dove-tailed with our own homegrown exploration activities in search
of a new kimberlite field in Botswana where we have recovered 27
diamonds in soils roughly 90 km SE of the Orapa Kimberlite Field,
the largest being 0.19 carats thus far.”
Quality Control and Quality
Assurances
Quality assurance procedures, security,
transport, storage, and processing protocols conform to chain of
custody requirements. CF Mineral Research Ltd. of Kelowna, B.C. is
ISO 9001:2008 certified and ISO 17025:2005 compliant lab.
The technical disclosure in this news release
has been reviewed and approved by Dr. Leon Daniels, BSc., BSc.
Honours Geology, PhD and a Qualified Person as defined by National
Instrument 43-101.
Pangolin Diamonds Corp. – Contact
Information
For more information on Pangolin Diamonds Corp,
please refer to the website at http://pangolindiamonds.com.
Follow us on Twitter: @pangolindiamond
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Scott Young, Investor RelationsPhone:
+1.705.888.2756Email: syoung@pangolindiamonds.com
Graham C. Warren, Chief Financial OfficerPhone:
+1.416.594.0473Fax: +1.416.594.1630Email:
gwarren@pangolindiamonds.com
Neither the TSX Venture Exchange nor its
Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for
the adequacy or accuracy of this release.
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