Altius

Lynx Diamond Project (Manitoba, Canada)

OVERVIEW

  • In early 2017 Altius acquired a 100% interest in the Lynx Project from a consortium of landowners.
  • Represents a new discovery of diamonds in Manitoba, the first in the province.
  • The geology of the project presents a unique and unconventional diamondiferous occurrence, defined as extensive volcaniclastic units in an Archean greenstone belt.
  • Multiple diamondiferous units identified.
  • At the Eastern Bay zone, a total of 1,149 micro-diamonds in the +0.106 mm to +0.850 mm size fraction were recovered from 11 samples collectively totaling 176 kg. Eight of the diamonds are considered macros with a dimension of at least 0.5 mm, with the largest stone having a long axis of 1.42 mm.
  • Descriptions for all stones larger than 0.3 mm (42 micro-diamonds) indicate that 24% of the stones are white/colourless and 45% are off-white while 17% are octahedral.
  • Mineral exploration licenses cover 60,816 ha, with an additional 60,268 ha of mineral exploration licenses under application.
  • The Company plans to undertake further investigative work in the coming weeks to further assess the potential of this new discovery, including field mapping, additional MiDA sampling, indicator mineral abundance and composition studies, petrography and potential minibulk sampling for the purposes of recovering possible macro-diamonds.

RESULTS

During June-July 2017, Altius collected 23 outcrop channel and grab samples (sixteen kilograms each) from various parts of the Project and submitted these for micro-diamond analysis (“MiDA”) (refer to map 1). All 11 of the samples collected from the Eastern Bay zone were diamondiferous – yielding between 34 and 303 micro-diamonds per sample (note that grab and channel samples reported here are selective and may not be representative of the mineralization on this property).

From these 11 Eastern Bay zone samples a total of 1,149 micro-diamonds in the +0.106 mm to +0.850 mm size fraction were recovered from a total of 176 kg of outcrop sample material. Eight of the diamonds are considered macros with a dimension of at least 0.5 mm, with the largest stone having a long axis of 1.42 mm. Descriptions for all stones larger than 0.3 mm indicate that 24% of the stones are white/colourless and 45% are off-white while 17% are octahedral. Summarized data for diamond bearing samples is shown in Table 1; full sample summary shown in Table 2; and diamond summary date presented in Table 3.

TABLE 1. Summarized MidA Results.

Sample ID Location Sample Description Sample Type Width (m) Weight (kg) 0.106mm-0.150mm 0.150mm-0.212mm 0.212mm-0.300mm 0.300mm-0.425mm 0.425mm-0.600mm 0.600mm-0.850mm +0.850mm Total
11406 Eastern Bay conglomerate channel* 1.7 16.0 32 20 8 4 2 1 0 67
11407 Eastern Bay conglomerate channel* 1.5 16.0 40 29 18 6 2 0 0 95
11408 Eastern Bay conglomerate channel* 1.5 16.0 31 29 11 3 1 0 0 75
11409 Eastern Bay conglomerate channel* 1.4 16.0 47 46 17 2 0 0 0 112
11410 Eastern Bay conglomerate channel* 1.6 16.0 45 45 8 1 0 0 0 99
11411 Eastern Bay conglomerate channel* 1.3 16.0 51 40 22 4 2 1 0 120
11412 Eastern Bay conglomerate channel* 1.8 16.0 36 28 19 5 0 0 0 88
11413 Eastern Bay conglomerate channel* 2.1 16.0 41 30 25 3 1 0 1 101
11414 Eastern Bay conglomerate grab n/a 16.0 38 13 2 1 1 0 0 55
11415 Eastern Bay conglomerate channel 2 16.0 251 47 4 1 0 0 0 303
11416 Eastern Bay conglomerate grab n/a 16.0 21 11 2 0 0 0 0 34
11417 Western Bay conglomerate channel 1.5 16.0 1 1 0 0 0 0 0 2
11421 Western Bay sandstone channel 2.6 16.0 2 1 0 0 0 0 0 3
11422 west side Knee Lake sandstone channel 2.4 16.0 35 9 0 0 0 0 0 44

Note 1: data reported as number of diamonds per sieve size
Note 2: *denotes continuous channels 11406 to 11413

TABLE 2. Sample Summary Report

Sample No. Dry Weight (kg) Sieve Size (microns) Macro Count Micro Count Weight + mg Weight + ct Weight - mg Weight - ct QC1 QC2 Synthetic
11401 1/2 8 106 0 0 0 0.000 0 0.000 0/0 11/11 0
11401 2/2 8 106 0 0 0 0.000 0 0.000 12/12 0/0 0
11402 1/2 8 106 0 0 0 0.000 0 0.000 0/0 12/12 0
11402 2/2 8 106 0 0 0 0.000 0 0.000 17/17 0/0 0
11403 1/2 8 106 0 0 0 0.000 0 0.000 0/0 15/15 0
11403 2/2 8 106 0 0 0 0.000 0 0.000 20/20 0/0 0
11404 1/2 8 106 0 0 0 0.000 0 0.000 14/15 0/0 0
11404 2/2 8 106 0 0 0 0.000 0 0.000 0/0 13/13 0
11405 1/2 8 106 0 0 0 0.000 0 0.000 11/11 0/0 0
11405 2/2 8 106 0 0 0 0.000 0 0.000 17/17 0/0 0
11406 1/2 8 106 0 31 0 0.000 0.9319 0.0046595 0/0 13/13 0
11406 2/2 8 106 1 35 0.7996 0.0039980 0.6306 0.0031530 12/12 0/0 0
11407 1/2 8 106 0 48 0 0.000 1.0461 0.0052305 0/0 12/13 0
11407 2/2 8 106 1 46 0.4820 0.0024100 0.9594 0.0047970 15/15 0/0 0
11408 1/2 8 106 0 38 0 0.000 0.5521 0.0027605 0/0 12/13 0
11408 2/2 8 106 1 36 0.3632 0.0018160 0.6359 0.0031795 10/11 0/0 0
11409 1/2 8 106 0 51 0 0.000 0.6828 0.0034140 0/0 15/15 0
11409 2/2 8 106 0 61 0 0.000 1.0944 0.0054720 18/18 0/0 0
11410 1/2 8 106 0 43 0 0.000 0.5351 0.0026755 0/0 9/10 0
11410 2/2 8 106 0 56 0 0.000 0.6462 0.0032310 11/11 0/0 0
11411 1/2 8 106 2 45 0.8305 0.0041525 0.8328 0.0041640 0/0 14/14 0
11411 2/2 8 106 1 72 0.8548 0.0042740 1.1274 0.0056370 13/13 0/0 0
11412 1/2 8 106 0 50 0 0.000 0.6691 0.0033455 0/0 10/10 0
11412 2/2 8 106 0 38 0 0.000 1.0642 0.0053210 13/13 10/10 0
11413 1/2 8 106 1 60 1.0429 0.0052145 0.9796 0.0048980 0/0 0/0 0
11413 2/2 8 106 0 40 0 0.000 0.9810 0.0049050 12/12 0/0 0
11414 1/2 8 106 0 30 0 0.000 0.2753 0.0013765 0/0 10/12 0
11414 2/2 8 106 1 24 0.4236 0.0021180 0.1624 0.0008120 18/18 0/0 0
11415 1/2 8 106 0 218 0 0.000 1.1290 0.0056450 16/16 0/0 0
11415 2/2 8 106 0 85 0 0.000 0.6922 0.0034610 0/0 11/11 0
11416 1/2 8 106 0 20 0 0.000 0.1235 0.0006175 17/18 0/0 0
11416 2/2 8 106 0 14 0 0.000 0.1659 0.0008295 0/0 15/15 0
11417 1/2 8 106 0 1 0 0.000 0.0248 0.0001240 14/14 0/0 0
11417 2/2 8 106 0 1 0 0.000 0.0039 0.0000195 0/0 14/14 0
11418 1/2 8 106 0 0 0 0.000 0 0.000 15/15 0/0 0
11418 2/2 8 106 0 0 0 0.000 0 0.000 14/14 0/0 0
11419 1/2 8 106 0 0 0 0.000 0 0.000 0/0 11/11 0
11419 2/2 8 106 0 0 0 0.000 0 0.000 13/13 0/0 0
11420 1/2 8 106 0 0 0 0.000 0 0.000 0/0 11/11 0
11420 2/2 8 106 0 0 0 0.000 0 0.000 17/17 0/0 0
11421 1/2 8 106 0 3 0 0.000 0.0257 0.0001285 0/0 11/11 0
11421 2/2 8 106 0 0 0 0.000 0 0.000 15/15 0/0 0
11422 1/2 8 106 0 28 0 0.000 0.1852 0.0009260 0/0 12/12 0
11422 2/2 8 106 0 16 0 0.000 0.0929 0.0004645 16/16 0/0 0
11423 1/2 8 106 0 0 0 0.000 0 0.000 0/0 12/12 0
11423 2/2 8 106 0 0 0 0.000 0 0.000 16/16 0/0 0

TABLE 3. Diamond Summary Report

Sample ID Fraction Description Diamond Count Length (mm) Width (mm) Height (mm) Weight (mg) Weight (ct) Diamond Descriptions
11406 1/2 425 1 0.90 0.42 0.38 0.2445 0.0012225 Yellow, Transparent, No Inclusions, Fragment, Lamination
11406 1/2 300 1 0.52 0.40 0.22 0.0830 0.000415 Off White, Transparent, Minor Inclusions, Tetra Hexahedron, Resorption Class 2, Distorted
11406 1/2 300 1 0.52 0.38 0.32 0.1152 0.000576 Yellow, Transparent, Minor Inclusions, Aggregate, Polycrystalline
11406 1/2 300 1 0.52 0.38 0.36 0.1021 0.0005105 Grey, Opaque, Obvious Inclusions, Aggregate
11406 1/2 212 6 0.2538 0.001269
11406 1/2 150 7 0.0745 0.0003725
11406 1/2 106 14 0.0588 0.000294
11406 2/2 600 1 1.42 0.82 0.60 0.7996 0.003998 Off White, Transparent, Noticeable Inclusions, Tetra Hexahedron, Resorption Class 2, Distorted
11406 2/2 425 1 0.82 0.44 0.38 0.2437 0.0012185 White/Colourless, Transparent, Noticeable Inclusions, Tetra Hexahedron, Resorption Class 2, Pits/Cavity, Distorted
11406 2/2 300 1 0.48 0.46 0.24 0.0731 0.0003655 Off White, Translucent, Noticeable Inclusions, Dodecahedron, Polycrystalline, Distorted
11406 2/2 212 2 0.0604 0.000302
11406 2/2 150 13 0.1590 0.000795
11406 2/2 106 18 0.0944 0.000472
11407 1/2 425 1 0.68 0.48 0.44 0.2873 0.0014365 Yellow, Translucent, Minor Inclusions, Cube, Polycrystalline
11407 1/2 300 1 0.62 0.40 0.32 0.1418 0.000709 Yellow, Transparent, No Inclusions, Tetra Hexahedron, Resorption Class 2, Pits/Cavity, Distorted
11407 1/2 212 7 0.2859 0.0014295
11407 1/2 150 15 0.2010 0.001005
11407 1/2 106 24 0.1301 0.0006505
11407 2/2 425 1 0.90 0.58 0.50 0.4820 0.00241 Off White, Transparent, Minor Inclusions, Octahedral, Resorption Class 5, Broken
11407 2/2 300 1 0.58 0.40 0.24 0.1344 0.000672 White/Colourless, Transparent, Minor Inclusions, Fragment, Lamination
11407 2/2 300 1 0.64 0.36 0.18 0.0842 0.000421 White/Colourless, Transparent, No Inclusions, Fragment, Lamination
11407 2/2 300 1 0.44 0.38 0.30 0.0800 0.0004 Yellow, Transparent, No Inclusions, Tetra Hexahedron, Resorption Class 2, Broken
11407 2/2 300 1 0.40 0.32 0.32 0.0750 0.000375 Off White, Transparent, No Inclusions, Octahedral, Resorption Class 5, Pits/Cavity
11407 2/2 300 1 0.40 0.32 0.32 0.0647 0.0003235 White/Colourless, Transparent, Minor Inclusions, Aggregate
11407 2/2 212 11 0.2631 0.0013155
11407 2/2 150 14 0.1762 0.000881
11407 2/2 106 16 0.0818 0.000409
11408 1/2 300 1 0.54 0.40 0.34 0.1351 0.0006755 White/Colourless, Transparent, Noticeable Inclusions, Tetra Hexahedron, Resorption Class 2, Distorted
11408 1/2 212 4 0.1065 0.0005325
11408 1/2 150 15 0.2285 0.0011425
11408 1/2 106 18 0.0820 0.00041
11408 2/2 425 1 0.88 0.56 0.46 0.3632 0.001816 White/Colourless, Transparent, No Inclusions, Octahedral, Resorption Class 5, Twin, Distorted
11408 2/2 300 1 0.54 0.42 0.26 0.1185 0.0005925 Off White, Transparent, Minor Inclusions, Octahedral, Resorption Class 3, Pits/Cavity, Distorted
11408 2/2 300 1 0.48 0.40 0.22 0.0483 0.0002415 White/Colourless, Transparent, Obvious Inclusions, Aggregate
11408 2/2 212 7 0.2238 0.001119
11408 2/2 150 14 0.1759 0.0008795
11408 2/2 106 13 0.0694 0.000347
11409 1/2 212 8 0.2723 0.0013615
11409 1/2 150 22 0.3190 0.001595
11409 1/2 106 21 0.0915 0.0004575
11409 2/2 300 1 0.50 0.40 0.30 0.1442 0.000721 Yellow, Transparent, Noticeable Inclusions, Dodecahedron, Pits/Cavity, Distorted
11409 2/2 300 1 0.50 0.34 0.28 0.0661 0.0003305 Off White, Transparent, Minor Inclusions, Octahedral, Resorption Class 5, Twin, Broken
11409 2/2 212 9 0.3738 0.001869
11409 2/2 150 24 0.3715 0.0018575
11409 2/2 106 26 0.1388 0.000694
11410 1/2 212 3 0.1243 0.0006215
11410 1/2 150 23 0.3289 0.0016445
11410 1/2 106 17 0.0819 0.0004095
11410 2/2 300 1 0.64 0.40 0.14 0.1040 0.00052 Off White, Transparent, Minor Inclusions, Octahedral, Resorption Class 5, Distorted
11410 2/2 212 5 0.1410 0.000705
11410 2/2 150 22 0.2691 0.0013455
11410 2/2 106 28 0.1321 0.0006605
11411 1/2 425 1 0.94 0.80 0.30 0.4562 0.002281 Off White, Transparent, Minor Inclusions, Aggregate
11411 1/2 425 1 0.88 0.52 0.42 0.3743 0.0018715 Off White, Transparent, No Inclusions, Fragment, Lamination
11411 1/2 300 1 0.60 0.46 0.40 0.1722 0.000861 Off White, Transparent, Minor Inclusions, Octahedral, Resorption Class 5, Serrate Laminae, Twin
11411 1/2 212 12 0.4055 0.0020275
11411 1/2 150 10 0.1450 0.000725
11411 1/2 106 22 0.1101 0.0005505
11411 2/2 600 1 1.04 0.80 0.62 0.8548 0.004274 Off White, Transparent, No Inclusions, Fragment
11411 2/2 300 1 0.72 0.40 0.20 0.1236 0.000618 Off White, Transparent, Minor Inclusions, Fragment
11411 2/2 300 1 0.94 0.38 0.26 0.0983 0.0004915 Grey, Opaque, Obvious Inclusions, Aggregate, Polycrystalline
11411 2/2 300 1 0.78 0.40 0.08 0.0526 0.000263 Grey, Opaque, Obvious Inclusions, Fragment, Polycrystalline
11411 2/2 212 10 0.3479 0.0017395
11411 2/2 150 30 0.3665 0.0018325
11411 2/2 106 29 0.1385 0.0006925
11412 1/2 300 1 0.66 0.40 0.08 0.0561 0.0002805 Off White, Transparent, No Inclusions, Fragment
11412 1/2 212 10 0.3474 0.001737
11412 1/2 150 15 0.1567 0.0007835
11412 1/2 106 24 0.1089 0.0005445
11412 2/2 300 1 0.78 0.52 0.36 0.1481 0.0007405 Off White, Transparent, Noticeable Inclusions, Aggregate
11412 2/2 300 1 0.72 0.56 0.38 0.1473 0.0007365 Off White, Transparent, Minor Inclusions, Irregular
11412 2/2 300 1 0.68 0.52 0.40 0.1155 0.0005775 Yellow, Transparent, Minor Inclusions, Fragment
11412 2/2 300 1 0.48 0.42 0.28 0.0500 0.00025 White/Colourless, Transparent, Obvious Inclusions, Aggregate, Polycrystalline
11412 2/2 212 9 0.3283 0.0016415
11412 2/2 150 13 0.2178 0.001089
11412 2/2 106 12 0.0572 0.000286
11413 1/2 850 1 1.30 0.98 0.90 1.0429 0.0052145 Off White, Transparent, Minor Inclusions, Fragment, Polycrystalline
11413 1/2 300 1 0.56 0.40 0.26 0.0870 0.000435 Black, Opaque, Obvious Inclusions, Fragment, Polycrystalline
11413 1/2 212 16 0.5103 0.0025515
11413 1/2 150 20 0.2810 0.001405
11413 1/2 106 23 0.1013 0.0005065
11413 2/2 425 1 0.80 0.48 0.36 0.2234 0.001117 Off White, Translucent, Minor Inclusions, Aggregate, Polycrystalline
11413 2/2 300 1 0.68 0.40 0.36 0.1374 0.000687 Yellow, Translucent, Minor Inclusions, Tetra Hexahedron, Resorption Class 1, Pits/Cavity, Polycrystalline, Distorted
11413 2/2 300 1 0.64 0.40 0.24 0.0752 0.000376 White/Colourless, Translucent, Noticeable Inclusions, Fragment, Polycrystalline
11413 2/2 212 9 0.3371 0.0016855
11413 2/2 150 10 0.1225 0.0006125
11413 2/2 106 18 0.0854 0.000427
11414 1/2 300 1 0.44 0.40 0.32 0.0773 0.0003865 Yellow, Transparent, Minor Inclusions, Dodecahedron, Broken
11414 1/2 212 1 0.0327 0.0001635
11414 1/2 150 7 0.0737 0.0003685
11414 1/2 106 21 0.0916 0.000458
11414 2/2 425 1 0.80 0.52 0.48 0.4236 0.002118 White/Colourless, Transparent, No Inclusions, Fragment, Lamination
11414 2/2 212 1 0.0272 0.000136
11414 2/2 150 6 0.0640 0.00032
11414 2/2 106 17 0.0712 0.000356
11415 1/2 300 1 0.50 0.40 0.26 0.0863 0.0004315 Off White, Transparent, Minor Inclusions, Aggregate, Polycrystalline
11415 1/2 212 2 0.0641 0.0003205
11415 1/2 150 30 0.2698 0.001349
11415 1/2 106 185 0.7088 0.003544
11415 2/2 212 2 0.0423 0.0002115
11415 2/2 150 17 0.2503 0.0012515
11415 2/2 106 66 0.3996 0.001998
11416 1/2 212 1 0.0219 0.0001095
11416 1/2 150 4 0.0433 0.0002165
11416 1/2 106 15 0.0583 0.0002915
11416 2/2 212 1 0.0235 0.0001175
11416 2/2 150 7 0.1096 0.000548
11416 2/2 106 6 0.0328 0.000164
11417 1/2 150 1 0.0248 0.000124
11417 2/2 106 1 0.0039 0.0000195
11421 1/2 150 1 0.0120 0.00006
11421 1/2 106 2 0.0137 0.0000685
11422 1/2 150 5 0.0560 0.00028
11422 1/2 106 23 0.1292 0.000646
11422 2/2 150 4 0.0356 0.000178
11422 2/2 106 12 0.0573 0.0002865

REGIONAL AND PROPERTY SCALE GEOLOGY

The following excerpt is taken from Anderson, 2016 (http://www.manitoba.ca/iem/geo/field/roa16pdfs/GS-2.pdf).

“On the basis of field characteristics and whole-rock geochemistry, alkaline rocks in the Oxford Lake–Knee Lake greenstone belt are defined herein to include six distinct types: 1) syenitic plutons (Cinder Lake alkaline intrusive complex); 2) carbonatite dikes; 3) lamprophyre dikes; 4) shoshonitic lava flows, cryptodomes and subvolcanic sills; 5) ultramafic volcanic conglomerate and sandstone; and 6) ultramafic volcaniclastic rocks.

Ultramafic volcanic conglomerate and sandstone, exposed in the south basin of Knee Lake, are some of the most distinctive rocks in the entire Oxford Lake– Knee Lake belt, primarily due to their bright olive-green, sculpted weathered surfaces. These rocks belong to the ‘ultramafic facies association’ of Anderson et al. (2015b) and are exposed in several locations, but the best exposures are found in two small bays in the southeast corner of the lake. Despite a spatial association with major high-strain zones, the rocks at these localities are characterized by spectacular preservation of primary sedimentary features. The ultramafic volcanic conglomerate is polymictic and forms poorly sorted to unsorted beds that range up to more than 10 m in thickness (see Photo 1).

Of particular note in the volcanic conglomerate is a distinct population of near-spherical pebbles, which consist of a lithic core of highly variable texture and composition mantled by a rim of very fine grained, dark green lithic material. These composite particles vary in abundance from bed to bed but locally account for close to 5% of the clast population and range up to several centimetres in diameter (See Photo 2). Similar particles, referred to as ‘pelletal lapilli’, are common features of diatreme pipes formed by high-intensity explosive eruptions of volatile charged melts, including kimberlites and other types of alkaline volcanic rocks. Recent work on pelletal lapilli from kimberlite pipes in South Africa indicates that these particles form when volatile-rich melts are emplaced into unconsolidated volcaniclastic material near the root zones of diatreme pipes and undergo intensive degassing, leading to a process referred to as ‘fluidized spray granulation’ (Gernon et al., 2012). Coupled with the unusual chemistry of the ultramafic volcanic conglomerate, the pelletal lapilli may indicate an associated alkaline volcanic centre that included one or more diatreme pipes.”

REFERENCES

Anderson, S.D. 2016: Alkaline rocks at Oxford Lake and Knee Lake, northwestern Superior province, Manitoba (NTS 53L13, 14, 15): preliminary results of new bedrock mapping and lithogeochemistry; in Report of Activities 2016, Manitoba Growth, Enterprise and Trade, Manitoba Geological Survey, p. 16–27.

QA/QC

Sample collection was done under the supervision of Altius personnel and shipped in sealed containers. Caustic fusion/chemical processing, diamond observation, weighing, description and photography (MiDA) was performed by SRC in Saskatoon, Saskatchewan, an independent mineral process laboratory facility. SRC provided descriptions for all stones larger than 0.3 mm. This method is ISO/IEC 7025:2005 Accredited by the Standards Council of Canada.

Lawrence Winter, Ph.D., P.Geo., Vice‐President of Exploration for Altius, a Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects, is responsible for the scientific and technical data presented herein and has reviewed, prepared and approved this material. Field work and sampling was supervised by Jeff Morgan, B.Sc., P.Geo., Exploration Manager for Altius.

© Copyright 2017 Altius Minerals Corporation