(TheNewswire)
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Excellent diamond indicator mineralchemistry reported from our Arbutus Kimberlite discovery
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A total of 3kg of Arbutus kimberlitewas processed at CF Minerals of Kelowna and interpreted by Dr. ChuckFipke
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He reports that Arbutus Kimberliteshould have excellent diamond potential with some of the bestchemistries he has seen, with abundant indicators in a relativelysmall sample.
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Dr. Chuck Fipke, created the Canadiandiamond industry when his work led to the discovery of the Ekatidiamond mine in the Lac de Grad kimberlite field.
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The lab has a large globaldatabase of minerals that are inclusions in diamonds. These haveunique chemistries. Many of the indicators from Arbutus exhibitedsimilar chemistry.
October 3, 2022 – TheNewswire - Vancouver,British Columbia – Arctic Star Exploration Corp. (“Arctic Star”or the “Company”) (TSXV:ADD) (Frankfurt:82A2) (WKN:A2DFY5)(OTC:ASDZF) is pleased to announce diamond indicator mineral“DIMS” analysis and classification has been completed by C.F.Mineral Research Ltd, on core sample from the Arbutus Kimberlitediscovery, of the Diagras project NT. The Diagrasproject is a joint venture between Arctic Star Exploration Corp. (81.5%) and Margaret Lake Diamonds Inc. ( 18.5%).
Mr. Patrick Power, President of the Company, commented,“Indicator mineraIs are an important adjunct, when first encountinga new kimberlite discovery. Dr. Fipke’s results and interpretationare telling us that:
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a) That the kimberlite ismulti-phase, with one of the phases having superior chemistry to theothers
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b) The chemistry is some of thebest Dr. Fipke has seen when compared to his global database ofdiamond inclusions, the results here have a higher percentage and aremore abundant by weight of samples that he has encounteredpreviously.
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c) The chemistry is alsopermissive for large diamonds.
We provide the full report from Dr Fipke below:-
Three small core samples ofkimberlite weighing 0.97, 0.81 and 1.22 kilograms were submitted byArctic Star Exploration to C.F. Mineral Research Ltd. for extraction,microprobing and classifying of any contained diamond indicatorminerals.
According to Arctic Star the threepieces originated from various parts of the Arbutus kimberlite inwhich 143.05 kilograms of kimberlite from two drill holes contained61diamonds.
A summary sheet of the diamond indicators recovered, microprobed andclassified is given as Table 1. An asterisk "*" present in acolumn type/header [G10* pyropes, Di*G9/11 pyropes, Di$*clinopyroxenes (Cr diopsides), Di* chromites, G1* eclogitic garnets,and Di* olivines] means that the indicator minerals recovered matchthe compositions of indicator minerals included in diamond, intergrownwith diamond or are from diamond bearing xenoliths. About 11,000 ofsuch diamond inclusion indicators from worldwide sources are presentin the C.F. Mineral Researchdatabase. The type and numbers of kimberlite indicators in Table 1suggest that all three samples may originate from differing kimberlitephases in the same kimberlite.
Sample DG-2022-08 weighing 970 gms contained only a single G10* pyropeand a single G1* eclogitic garnet. However the sample contained 92 Di*chromites and 36 Di* olivines. Moreover, the sample contained a Di$*clinopyroxene and five Di* G9/11 pyrope garnets that are sourced fromLherzolite which are known to contain small quantities of very largediamonds. Such Lherzolite minerals are included in
diamonds greater than 52 carats fromthe Ekati Diamond Mine, Canada and are present at the Premier Mine,South Africa, the Lacara Mine, South Africa and the Letzing Mine,Lesotho. The last mine is known to contain huge diamonds with no orrare small diamonds.
Sample DG-2022-09B, weighing 810 gmsalso only contained a single G10* pyrope garnet and no Di*G9/11 pyropegarnets but contained 68 Di* chromites, 41 Di* olivines and 67 G1*ecologitic garnets. Thus, this sample is dominated by G1* ecologiticgarnets from a diamond bearing ecologite source but also contains 3Di$* clinopyroxenes from a Lherzolite source described above.
Sample DG-2022-09A weighing 1220 gmscontained 73 G10* pyropes, 110 Di* chromites, 44 Di* olivines, 32 G1*ecologitic garnets. In addition the sample contained two Di* G9/11pyropes and a single Di$* clinopyroxene. Thus these indicator mineralswere sourced from diamond bearing pyrope and chromite sources as wellas a diamond bearing ecologite source as well as from a Lherzolitesource of large diamonds.
C.F. Mineral have never previouslyencountered such a rich source of G10-10* and G10-9* compositionpyropes along with significant diamond inclusion minerals from diamondbearing chromite, Group 1 ecologite and Lhzerolite sources of diamond.According to the late Dr. John Gurney, Head of the Department ofGeochemistry, South Africa, G10-10* and G10-9* composition pyropes areassociated with the highest of diamond grades. We would expect thekimberlite phase of DG-2022-09A to be loaded with diamonds andadditionally contain some very large diamonds.
Unfortunately only fourpicroilmenites were recovered from all three samples submitted.Picroilmenites do not actually form with diamond but form from thekimberlite magma itself. When 40 to 50 picroilmenites are present itis possible to predict whether or not the kimberlite magma may haveoxidized diamonds thus
destroying small diamonds butleaving large diamonds only partially oxidized. Of course diamondsencapsulated in xenoliths would be insulated against an oxidizingkimberlite magma thus be recovered unoxidized.
If more of the DG-2022-09A phase ispresent we would expect correspondingly high diamond grades. All threesamples contain Lherzolite sources of diamond in which large diamondsare expected with or without small diamonds. Overall, the DG-2022-09Ap hase Di* indicator results are the best C.F. Mineral have everencountered.
Note: Dr. Fipke personally ownsArctic Star shares.
Mr. Buddy Doyle, VP Exploration for Arctic Star, alsocommented. “Our general exporation strategy is to locate newkimberlite discoveries. If the results of this work is encouraging wereturn to the kiberlite and drill more to define its size and get alarger diamond samples. The Arbutus kimberlitediscovery has proven to be diamond bearing, with relatively largerstones from a small sample. (see news release dated September 14/22 ).This along with the excellent diamond chemisrty reported here,demonstrates that this kimberlite deserves further attention. Alsonotable, is that Arbutus lies to the south of the Finlay kimberlite. Ahistoric kimberlite, discovered in the 1990’s, however, the previousworkers never made the diamond content public. We therefore also planto test this kimberlite in the 2023 exploration program.”
Qualified Person
The Qualified Person for this news release is BuddyDoyle, AUSIMM, a Geologist with over 35 years of experience in diamondexploration, discovery, and evaluation. A Qualified Person under theprovisions of the National Instrument 43-101. Mr. Doyle has relied onthe Technical expertise of Dr. Fipke for portions of this newsrelease.
About Arctic Star
Arctic Star is predominantly a diamond explorer,recently discovering 6 new kimberlites in the prolific Lac De Graskimberlite field that supports 2 multi-billion dollar kimberlitemining complexes. The Company also has a 958 Ha Exploration permitcontaining several diamond-bearing kimberlites on its Timanttiproject, Kuusamo Finland. Arctic Star has optioned its Stein diamondproject in Nunavut to GGL diamonds who plans to work once Covidrestrictions lift. The Company continues to look for appropriatediamond opportunities elsewhere.
The Diagras project is a joint venture between ArcticStar Exploration Corp. (currently 81.5%) and Margaret Lake DiamondsInc. (currently 18.5%).
ON BEHALF OF THE BOARD OF DIRECTORS OF
ARCTIC STAR EXPLORATION CORP.
“Patrick Power”
Patrick Power, President & CEO
+1 (604) 218-8772
ppower@arcticstar.ca
This news release contains"forward-looking statements" including but not limited tostatements with respect to Arctic Star’s plans, the PrivatePlacement and the use of proceeds. Forward-looking statements, whilebased on management's best estimates and assumptions, are subject torisks and uncertainties that may cause actual results to be materiallydifferent from those expressed or implied by such forward-lookingstatements, including but not limited to: risks related to thecompletion of the Private Placement and our plan to use all or someportion of the proceeds for exploration on the Diagras DiamondProject. There can be no assurance that such statements will prove tobe accurate, as actual results and future events could differmaterially from those anticipated in such statements. Factors thatcould affect our plans include the possibility that we do not receivefinal TSXV approval for the Private Placement or we are unable toraise all of the funds we are seeking to raise, in which event we mayrequire all funds raised, if any, to be used for working capitalrather than for exploration on the Diagras Diamond Project; and ourproposed use of proceeds is subject to receipt of TSXV approval. Accordingly, readers should not place undue reliance onforward-looking statements. Arctic Star undertakes no obligation orresponsibility to update forward-looking statements, except asrequired by law.
Neither the TSX Venture Exchange norits Regulation Services Provider (as that term is defined in thepolicies of the TSX Venture Exchange) accepts responsibility for theadequacy or accuracy of this release.
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