Further Lithium mineralisation identified at Mt Peake

Highlights

  • 1.15% Li2O (and 226 ppm Ta) returned from ongoing rock chip sampling program at the Mt Peake Lithium Project

  • Petrological study confirms Montebrasite, Ferrotantalite and Wodginite

  • Further mapping, rock chip sampling and an extension to the previously announced soil geochemistry program are planned to locate drill targets

Australasian Metals Limited (ASX: A8G, Australasian or the Company) is pleased to advise that the Company has identified further lithium mineralisation at the Mt Peake Lithium Project, in the Northern Arunta pegmatite province, Northern Territory.

A8G Managing Director Dr Qingtao Zeng commented:

"Our sampling program and mapping is continuing to generate encouraging results and we are greatly increasing our understanding of the different phases of intrusion in this area. Our geologists have identified lithium mineralisation on every sampling survey to date and the latest >1.0% Li2O rock chip sample gives us increasing confidence on the lithium enrichment within our tenements. The high lithium content indicates that the pegmatites in our area have fractionated enough to concentrate up lithium and related elements and there could be several parallel lithium-bearing pegmatite dykes in shallow depth waiting for us to drill."

Outcropping bedrock in the northwest corner of EL32830 is rare due to the dominant alluvial cover, which provides limited access to probe the geology directly. With our ongoing field mapping and sampling surveys, the Company has again confirmed lithium mineralisation in the surface through another sample (MP10127) with 1.15% Li2O and 226 ppm (location is presented in Figure 1). This is consistent with the previously reported JC-001 sample which contained 1.61% Li2O and 223 ppm Ta. MP10127 was taken ~800m to the southeast of JC001. The exact relationship between these two mineralised samples is still unknown due to the limited outcrop and will be a focus of investigation in the near future. All samples to date assay results are listed in the Table 1 of this announcement.

Diamantina Laboratories were engaged for a petrological study on sample MP10127. One of the minerals identified was montebrasite (LiAl(PO4) (OH,F)) a lithium phosphate that is amenable to processing to produce a saleable product.

Figure 1: Location of Sample MP10127 at the northwest corner of EL32830. The interpreted pegmatite bodies in shallow depth by DGPR was coloured in orange. The Inserted map shows the soil sampling program area and rock chip locations.

Figure 2: Montebrasite in thin section of Sample MP10127

Dr Qingtao Zeng

Mr Dan Smith

Managing Director

Joint-Company Secretary

M +61 8 6507 3082

T +61 8 9486 4036

The montebrasite forms a 2cm sized crystal in the centre of the 4x 2.5cm slide area of Sample MP10127. It is flanked by variable concentrations of finer muscovite, apatite, quartz and some fine montebrasite. The montebrasite was identified by optics/ SEM, and confirmed by its XRD pattern, which differs from its polymorph, amblygonite.

The identified micas are seen to form bunches of coarse flakes and have a very high Rb2O content (>3%), yet very low fluorine (0.15%). The mica is colourless macroscopically and in polarized light. Attempts using RI values that separate lepidolite and muscovite were inconclusive. XRD patterns are very similar. SEM scan found a number of grains of ferrotantalite and wodginite.

Next Steps

  • Soil geochemistry will be infilled around the areas of anomalism and will also be extended to the south-east to cover the area sample MP10127 was taken.

  • Rock chip sampling will be ongoing across the project where there is outcrop exposure.

  • Soil and rock chip geochemistry will be combined with the previously conducted Deep Ground Penetrating Radar survey to develop a more complete understanding of the geology and mineralisation.

  • Work has begun on the submission of a Mine Management Plan in order to obtain authorisation under the Mining Management Act (NT) to carry out activities that could lead to significant disturbances. This will enable the company to conduct drilling activities.

This announcement is approved for release by the Board of Directors.

ENDS

For Further Information

Competent Person Statement

The information in this report that relates to Exploration Results is based on, and fairly represents, information and supporting documentation prepared by Graeme Fraser, Non-Executive Director of Australasian Metals Limited (A8G). Mr Fraser is a member of the Australasian Institute of Mining and Metallurgy and he has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which has been undertaken to qualify as a Competent Person as defined in the 2012 Edition of the "Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves". Mr Fraser consents to the inclusion in this release of the matters based on the information in the form and context in which they appear. Mr Fraser is a shareholder of A8G.

Sample ID

East

North

Li2O (ppm)

Cs (ppm)

Fe (ppm)

Nb (ppm)

P (ppm)

Rb (ppm)

Sn (ppm)

Ta (ppm)

JC001

307813

7592989

16,080

66.7

3200

25

85600

1975.4

91

223

JC002

306439

7597227

50

5.8

33700

50

900

544.1

-10

3.3

MP10101

307736

7592965

-20

21.6

5400

18

400

299.2

-10

7.1

MP10102

307735

7592965

-20

10.1

3800

5

4400

176.7

-10

0.6

MP10103

307744

7592982

-20

6.5

3800

6

600

262.9

-10

2

MP10104

307956

7593086

-20

0.8

2800

3

-200

36.9

269

-0.1

MP10105

307958

7593085

-20

1

3400

2

400

29.2

-10

0.1

MP10106

307951

7593054

20

11.8

2500

7

-200

218.9

15

3.7

MP10107

307874

7592931

20

8.7

3800

6

300

211.8

-10

2.4

MP10108

307841

7592910

-20

7.6

4100

10

200

204

-10

1.2

MP10109

307955

7592859

-20

6.1

3400

4

300

159.1

-10

0.1

MP10110

308018

7592908

-20

7.7

3200

5

500

222.7

16

1

MP10111

308056

7592909

-20

7

3200

10

-200

192.9

11

4.1

MP10112

307919

7592729

-20

13.4

6600

16

400

250.5

12

9.3

MP10113

308119

7592747

-20

20.4

9900

35

500

226.3

21

17.6

MP10114

308337

7592270

-20

11.3

5800

3

900

242

-10

0.6

MP10115

308270

7592253

-20

12.3

5000

20

-200

235.4

14

4

MP10116

308276

7592378

-20

6.4

4100

8

1200

224.1

13

3.4

MP10117

308372

7592308

-20

16.5

6100

30

800

262.4

22

17.4

MP10118

308569

7592046

-20

0.4

5400

-2

-200

16.1

-10

-0.1

MP10119

306079

7595894

-20

12.6

5700

16

400

334

14

3.3

MP10121

306140

7596471

-20

0.6

3200

11

400

21.5

-10

0.2

MP10122

305515

7595048

90

1.8

24200

12

400

165.4

-10

0.2

MP10123

308531

7592567

-20

23.4

4800

20

600

534.1

16

9.1

MP10124

308576

7592564

-20

23.2

6300

30

800

307.2

76

8.7

MP10125

308721

7592493

-20

11.6

4300

12

600

148.4

45

5

MP10126

308563

7592636

30

68.8

9900

86

400

704.7

499

31.2

MP10127

308603

7592711

11,520

30.3

5500

32

31000

747.3

113

225.7

MPL007-A

308812

7592372

240

27.4

44300

15

800

205.7

36

4.5

MPL007-B

308812

7592372

40

25.3

6700

21

800

428.5

17

4.4

MPL007-C

308812

7592373

-20

7.5

2900

10

600

175.8

18

2.1

MPL007-D

308812

7592373

20

16.8

3100

15

400

357.2

19

3.6

MPL007-E

308812

7592374

40

27.4

5800

34

900

351.8

266

30.2

MPL007-F

308812

7592374

30

14.4

4600

23

200

211.4

44

8.4

MPL007-G

308812

7592375

-20

15.9

3500

21

800

314.8

23

8

MPL008

308816

7593219

-20

27.4

3000

74

1100

463.9

23

125.4

MPL009

308801

7593348

110

28.5

4500

87

1300

754.6

71

21.2

MPL014

309037

7592428

-20

19.8

5100

19

-200

269.6

24

2.8

MPL015

308812

7592418

30

19.4

4100

20

-200

241.5

52

12.7

MPL018.1N

307901

7589618

120

12.8

4800

3

300

197.6

-10

0.3

MPL018.2N

307901

7589618

30

5

13000

10

400

187.9

33

1.4

MPL018.51S

307853

7589575

40

10.1

33800

19

500

374.1

-10

0.5

MPL018.52S

307831

7589564

60

8.3

9500

20

-200

147.9

45

1.1

MPL018.53S

307855

7589503

60

3.9

10000

15

-200

139.1

42

1.2

MPL018.54S

307867

7589368

40

3.7

7500

13

-200

97.9

18

3.3

MPL018.55S

307896

7589448

50

7.5

11700

11

-200

223.1

32

2.1

MPL018.56S

307907

7589504

60

6

9200

16

400

264.5

62

1.2

MPL024

316042

7596469

210

25.5

19000

17

1300

372.6

-10

2.9

MPL050

306689

7592442

50

1.7

82300

7

600

113.2

-10

0.5

MPL051

306539

7592468

30

18.7

12600

13

500

237.5

22

3.3

MPL053

331523

7573401

80

13

43200

21

1400

393.1

-10

1.9

MPL054.1

308047

7592961

-20

0.6

3100

5

500

15.4

-10

6.3

MPL054.2

308047

7592961

70

8.4

5100

9

800

203.4

11

4.4

MPL054.3

308047

7592961

20

2.9

5000

6

-200

140.4

-10

1

MPL056

305789

7596444

40

16.8

8800

21

400

418

18

5.1

MPL057

305899

7596451

80

7.1

5300

10

-200

206.4

-10

3

MPL058

305964

7595913

-20

7.8

3100

2

500

272.2

11

0.8

Table 1: Results of all surface samples taken from the Mt Peake lithium project to date.

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Australasian Metals Ltd. published this content on 07 April 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 07 April 2022 22:28:06 UTC.