CXO: Thick High-Grade Lithium Intersections at Blackbeard

Original announcement by asx on

Company
Core Lithium Ltd
Ticker
CXO
Exchange
ASX
Region
Northern Territory
Primary commodity
Lithium
Secondary commodities
None reported
Document categories
Drill results
Extracted
2026-10-18 23:18:11 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Core Lithium has reported thick, high-grade lithium intersections at the Blackbeard prospect, highlighted by a 92m @ 1.25% Li2O intercept in hole NMRD104. These results confirm the continuity of high-grade mineralisation and represent the longest downhole intersection recorded at the prospect to date.

Reasoning: The announcement reports significant new high-grade lithium intercepts at the Blackbeard prospect, including a record-length intersection in NMRD104 that confirms continuity of mineralisation.

Positive factors

  • thick high-grade lithium intersections
  • longest downhole intersection at Blackbeard to date
  • confirms continuity of high-grade mineralisation
  • step-out/along-strike continuity demonstrated

Negative factors

  • partial results for NMRD108
  • low-grade/no significant intercepts in deep holes NMRD101 and NMRD102

Facts used in scoring: 6

Classification and evidence

True Width Disclosedpositive

Actual thickness perpendicular to structure is stated, not just downhole length.

Why it applies: NMRD104 reports an estimated true thickness of approximately 45m.

Evidence · text

“estimated true thickness is approximately 45m”

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: The release details sampling techniques, laboratory (Intertek), and use of standards and blanks.

Evidence · text

“Intertek utilise standard internal quality control measures including the use of Certified Lithium Standards and duplicates/repeats.”

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: NMRD104 is located 80m up-dip of a previously reported intersection, confirming continuity.

Evidence · text

“located approximately 80m up-dip of the previously reported 63m @ 1.67% Li2O in NRC2691, confirming continuity”

Extracted facts

Stored fact records: 6. Some facts used in scoring do not have a stored record.

Drill Results (6)

NMRD104Blackbeard · lithiumGrade: 1.25Grade Unit: %Intercept: 92 mView all details
Link to this fact

Identity

Hole ID
NMRD104
Project
Blackbeard
Commodity
lithium
Region
australia_nt
Reported Region
australia_nt
Ticker
CXO

Geometry

Grade
1.25
Grade Unit
%
Intercept
92 m
True Width
45 m
From
92 m
To
184 m
Hole Depth
231.1 m
Intercept Depth
92 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
NMRD104:92-184
Mining Method
unknown

Location

Location
Blackbeard
Easting
687210
Northing
8585070
Elevation
26 m
Azimuth
324 °
Dip
-60 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Intertek
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Cutoff Grade
0.3
Cutoff Unit
% Li2O
Dilution Disclosed
Yes
Max Dilution
3 m

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-18T00:00:00.000Z

Reasoning: 92m @ 1.25% Li2O is a standout intersection and the longest at Blackbeard to date.

Positive factors

  • record length at prospect
  • high grade
  • confirms continuity

Evidence · text

“92m @ 1.25% Li2O from 92m in NMRD104 (~45m true width)”

Tags used in scoring

True Width Disclosedpositive

Actual thickness perpendicular to structure is stated, not just downhole length.

Why it applies: true_width_m is 45

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: cutoff_grade and internal dilution are both stated

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "The information in this announcement that relates to previously reported Exploration Results is extracted from the ASX a"

NMRD104Blackbeard · lithiumGrade: 1.45Grade Unit: %Intercept: 73 mView all details
Link to this fact

Identity

Hole ID
NMRD104
Project
Blackbeard
Commodity
lithium
Region
australia_nt
Reported Region
australia_nt
Ticker
CXO

Geometry

Grade
1.45
Grade Unit
%
Intercept
73 m
True Width
35 m
From
110 m
To
183 m
Hole Depth
231.1 m
Intercept Depth
92 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
NMRD104:110-183
Mining Method
unknown

Location

Location
Blackbeard
Easting
687210
Northing
8585070
Elevation
26 m
Azimuth
324 °
Dip
-60 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Intertek
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Cutoff Grade
0.3
Cutoff Unit
% Li2O
Dilution Disclosed
Yes
Max Dilution
3 m

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-18T00:00:00.000Z

Reasoning: High grade component of the NMRD104 intersection.

Positive factors

  • high grade sub-interval

Evidence · text

“73m @ 1.45% Li2O from 110m (~35m true width)”

Tags used in scoring

True Width Disclosedpositive

Actual thickness perpendicular to structure is stated, not just downhole length.

Why it applies: true_width_m is 35

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: cutoff_grade and internal dilution are both stated

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "The information in this announcement that relates to previously reported Exploration Results is extracted from the ASX a"

NMRD108Blackbeard · lithiumGrade: 1.35Grade Unit: %Intercept: 29 mView all details
Link to this fact

Identity

Hole ID
NMRD108
Project
Blackbeard
Commodity
lithium
Region
australia_nt
Reported Region
australia_nt
Ticker
CXO

Geometry

Grade
1.35
Grade Unit
%
Intercept
29 m
From
209 m
To
238 m
Hole Depth
348 m
Intercept Depth
209 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
NMRD108:209-238
Mining Method
unknown

Location

Location
Blackbeard
Easting
687165
Northing
8584960
Elevation
26 m
Azimuth
324 °
Dip
-60 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Intertek
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Cutoff Grade
0.3
Cutoff Unit
% Li2O
Dilution Disclosed
Yes
Max Dilution
3 m

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-18T00:00:00.000Z

Reasoning: Strong intercept but results are partial with assays pending for the remainder of the hole.

Positive factors

  • high grade

Negative factors

  • partial results

Evidence · text

“29m @ 1.35% Li2O from 209m in NMRD108”

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: cutoff_grade and internal dilution are both stated

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "The information in this announcement that relates to previously reported Exploration Results is extracted from the ASX a"

NMRD103Blackbeard · lithiumGrade: 0.59Grade Unit: %Intercept: 19 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
NMRD103
Project
Blackbeard
Commodity
lithium
Region
australia_nt
Reported Region
australia_nt
Ticker
CXO

Geometry

Grade
0.59
Grade Unit
%
Intercept
19 m
From
330 m
To
349 m
Hole Depth
420.2 m
Intercept Depth
330 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
NMRD103:330-349
Mining Method
unknown

Location

Location
Blackbeard
Easting
687050
Northing
8585220
Elevation
26 m
Azimuth
-68 °
Dip
-68 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Intertek
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Cutoff Grade
0.3
Cutoff Unit
% Li2O
Dilution Disclosed
Yes
Max Dilution
3 m

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2026-10-18T00:00:00.000Z

Reasoning: Low grade intersection relative to the high-grade zones identified elsewhere.

Negative factors

  • low grade

Evidence · table

“0.59”

Context: 19

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: cutoff_grade and internal dilution are both stated

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "The information in this announcement that relates to previously reported Exploration Results is extracted from the ASX a"

NMRD105Blackbeard · lithiumGrade: 1.11Grade Unit: %Intercept: 4 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
NMRD105
Project
Blackbeard
Commodity
lithium
Region
australia_nt
Reported Region
australia_nt
Ticker
CXO

Geometry

Grade
1.11
Grade Unit
%
Intercept
4 m
From
142 m
To
146 m
Hole Depth
306.1 m
Intercept Depth
142 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
NMRD105:142-146
Mining Method
unknown

Location

Location
Blackbeard
Easting
687270
Northing
8585050
Elevation
27 m
Azimuth
-63 °
Dip
-63 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Intertek
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Cutoff Grade
0.3
Cutoff Unit
% Li2O
Dilution Disclosed
Yes
Max Dilution
3 m

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2026-10-18T00:00:00.000Z

Reasoning: Narrow high-grade intersection.

Negative factors

  • narrow width

Evidence · table

“1.11”

Context: 4

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: cutoff_grade and internal dilution are both stated

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "The information in this announcement that relates to previously reported Exploration Results is extracted from the ASX a"

NMRD105Blackbeard · lithiumGrade: 0.72Grade Unit: %Intercept: 12.9 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
NMRD105
Project
Blackbeard
Commodity
lithium
Region
australia_nt
Reported Region
australia_nt
Ticker
CXO

Geometry

Grade
0.72
Grade Unit
%
Intercept
12.9 m
From
203 m
To
216 m
Hole Depth
306.1 m
Intercept Depth
142 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
NMRD105:203-216
Mining Method
unknown

Location

Location
Blackbeard
Easting
687270
Northing
8585050
Elevation
27 m
Azimuth
-63 °
Dip
-63 °
Loc. Confidence
high
Loc. Source
document

QA/QC

Laboratory
Intertek
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Cutoff Grade
0.3
Cutoff Unit
% Li2O
Dilution Disclosed
Yes
Max Dilution
3 m

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2026-10-18T00:00:00.000Z

Reasoning: Lower grade component of the NMRD105 intersection.

Positive factors

  • includes high grade sub-interval

Negative factors

  • low grade

Evidence · table

“0.72”

Context: 13

Tags used in scoring

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: qaqc_disclosed is true

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: cutoff_grade and internal dilution are both stated

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "The information in this announcement that relates to previously reported Exploration Results is extracted from the ASX a"

How Atlas produces this analysis

Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.