ASX ANNOUNCEMENT
ANDROMEDA METALS LTD (ANDROMEDA, ASX: ADN)
onlyAndr meda Metals Limited ABN 75 061 503 375
useCorporate details:
ASX Code: ADN
Cash (31 Dec 2021): $42.8m
Issued Capital:
personal3,055,402,798 Ordinary Shares 70,300,0000 Unlisted Options
27,833,325 Performance Rights
Direct rs & Officers:
Meli a Holzberger
Acting Non-Executive Chair
James Marsh
Managing Director
Joe Ranford
O erations Director
Andrew Shearer
ForNon-Executive Director
Andrea Betti
Company Secretary
Andromeda Metals Ltd | ABN 75 061 503 375 | 69 King William Road Unley SA, 5061
info@andromet.com.au | www.andromet.com.au
For personal use only
FIGURE 1 : GREAT WHITE KAOLIN PROJECT TENEMENTS AND
PROSPECTS
Andromeda Metals Ltd | ABN 75 061 503 375 | 69 King William Road Unley SA, 5061
info@andromet.com.au | www.andromet.com.au
New 2012 JORC Mineral Resource Summary
An Indicated Mineral Resource Estimate for the Tiger Deposit of 12.1Mt of kaolinised granite is reported at an ISO brightness (R457) cut-off of 75 in the <45-micron size fraction, Table 1 below.
TABLE 1 - TIGER KAOLIN MINERAL RESOURCE
PSD | Kaolinite + | ||||
Classification | Mt | <45µm | Halloysite % | ||
Indicated | 12.1 | 59.9 | 56.7 | ||
N te that all figures are rounded to reflect appropriate levels of confidence | |||||
only |
The Resource yields 7.24Mt of High Bright kaolin product (R457 >80 <84) in the <45-micron recovered fraction, with the remaining approximate 43.3% of material being largely residual quartz derived from the w athered granite, Table 2.
TABLE 2 - TIGER KAOLIN MINERAL RESOURCE <45µM
use | Classification | Mt | ISO B | Kaolinite + | Al2O3 % | Fe2O3 % | TiO2 % |
Halloysite % | |||||||
Indicated | 7.2 | 83.1 | 94.7 | 37.2 | 0.81 | 0.61 | |
Note that all figures are rounded to reflect appropriate levels of confidence | |||||||
personal |
Mineral Resource Detail
The 2021 Tiger Resource Estimate is based on sample analyses undertaken by Andromeda on drilling carried out in 2011. Work undertaken prior to 2011 was not sufficiently documented to meet JORC 2012 requirements.
A total 45 aircore drillholes (2132.5 metres), with all holes drilled vertically to intersect the flat-lying mineralisation at right angles, with most holes intersecting the upper (hanging wall) and lower (footwall) contacts to the mineralisation.
Samples were composited and blunged at the Streaky Bay pilot plant in 2011, however they were not analysed at the time and were instead stored safely in a locked shed at the pilot plant. As part of an exploration program Andromeda submitted the processed samples to Bureau Veritas to be analysed by their XRF 4B method to determine elements that include Al2O3, Fe2O3, SiO2 and TiO2. Brightness on the <45µm material was determined by Andromeda staff at an enclosed laboratory room at Bureau Veritas
Forusing the Company's Technidyne Colourtouch CT-PC Spectrophotometer in accordance with Tappi standard T534 om-15. Kaolinite is reported inclusive of halloysite as halloysite in not present in high enough c ncentration to meet Andromeda's overall minimum requirement of +10%. As such kaolin from Tiger is classified as a medium-grade kaolin product suitable for general industrial use. All drillhole data used for the resource estimate is contained in Appendix 1 and Appendix 2 of this report.
The drillhole data was used to define a flat-lying kaolin deposit that lies between 9.0 and 26.0m below the surface with an average depth of 17.0m, see Figure 2. The Resource Estimate covers an area of approximately 1.0km E-W by 0.7km N-S with a kaolin thickness ranging from 2.0m to 32.0m with an average thickness of 14.5m, see Figure 3. Overburden consists of a thin soil layer which overlies a mixed sequence of alluvial clays, sands and gravels. On rare occasions the top of the kaolin is silicified and the base of
Andromeda Metals Ltd | ABN 75 061 503 375 | 69 King William Road Unley SA, 5061
info@andromet.com.au | www.andromet.com.au
silicification marks the top of the kaolin resource whilst the change in weathering intensity to partially decomposed granite marks the base of the kaolin resource.
onlyuse personalFIGURE 2: BLOCK MODEL COLOURED BY ISO BRIGHTNESS, DRILL COLLARS AND COVER DEPTH CONTOURS (GDA 94 MGA 53) For
Andromeda Metals Ltd | ABN 75 061 503 375 | 69 King William Road Unley SA, 5061
info@andromet.com.au | www.andromet.com.au
onlyuse personalFIGURE 3: BLOCK MODEL COLOURED BY ISO BRIGHTNESS, DRILL COLLARS AND DEPOSIT THICKNESS CONTOURS (GDA 94 MGA 53)
The 2011 aircore drilling was done on a 100m-by-100m square grid. Composite intervals were extracted fr m the drillhole database constrained by the kaolin wireframes. Grade interpolation of the kaolinite was completed for the <45µm recovered material, along with Al2O3, Fe2O3, SiO2, TiO2 and ISO Brightness all obtained on the <45µm fraction. Statistical analysis and variogram modelling were undertaken using Snowden's Supervisor. The analysis shows reasonably well-structured data with low coefficients of variation, all of which resulted in no top cuts being applied. A summary of statistics is presented in Table 3.
TABLE
Clay (%) | 77 | 99 | 95 | 95 | 3 | 0 | 9 | -4 | ||
Hinckley | ||||||||||
XRD | Index | 0.571 | 1.436 | 0.901 | 0.885 | 0.173 | 0.192 | 0.03 | 1.907 | |
For | ||||||||||
Crystalite | ||||||||||
Size | 28.7 | 113.9 | 58.425 | 55.933 | 17.203 | 0.294 | 295.927 | 0.488 | ||
XRF | Al2O3 (%) | 29.5 | 38.7 | 37.105 | 37.079 | 1.339 | 0.036 | 1.792 | -4.305 |
Andromeda Metals Ltd | ABN 75 061 503 375 | 69 King William Road Unley SA, 5061
info@andromet.com.au | www.andromet.com.au
This is an excerpt of the original content. To continue reading it, access the original document here.
Attachments
- Original Link
- Original Document
- Permalink
Disclaimer
Andromeda Metals Limited published this content on 22 March 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 23 March 2022 00:43:05 UTC.