Preliminary Metallurgical Test Work Confirms High Quality Lithium
Original announcement by research on
- Company
- Unavailable
- Ticker
- SAV
- Exchange
- LSE
- Region
- northern Portugal
- Primary commodity
- Lithium
- Secondary commodities
- Iron ore, Tin, Tantalum
- Document categories
- Metallurgy, Other
- Extracted
- 2026-11-08 14:11:43 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Savannah reports preliminary metallurgical test work from the Mina do Barroso lithium project in northern Portugal. The work indicates a high-grade spodumene concentrate can be produced, with ~83.7% Li2O recovery in a simple flotation test and a very pure ~8% Li2O product from HLS. The release also says a 3,000-5,000m drill programme will start shortly to help define a JORC resource.
Reasoning: The release reports encouraging preliminary metallurgy for the Mina do Barroso lithium project, with strong flotation recovery and a high-purity concentrate. It is materially positive for project de-risking, but the work is early-stage and still requires optimisation.
Positive factors
- preliminary metallurgical test work confirms a saleable spodumene concentrate can be produced
- single stage flotation achieved ~83.7% Li2O recovery at ~5.9% Li2O
- HLS shows a very pure (~8%) Li2O product can be produced
- conventional commercially available processing technologies were used
Negative factors
- preliminary test work only
- further metallurgical test work will now be conducted to further optimise the lithium recovery process
- no reagent consumption disclosed
Low confidence — this extraction should be reviewed alongside the original source.
Rubric flags
- drill_results not extracted — This document is primarily a metallurgy release, not a drill-results announcement. If you need drilling facts, use the planned drilling reference only as a future work note, not as completed drill results.
Facts used in scoring: 18
Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The release describes flotation test work and a one stage float, which is a mill-style processing route.
Evidence · text
“Single stage floatation test”
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: The headline flotation result reports ~83.7% Li2O recovery, which is strong for the reported test context.
Evidence · text
“achieved ~83.7% Li2O recovery”
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: The company says 'a simple conventional recovery process is likely' and cites conventional commercially available processing technologies.
Evidence · text
“a simple conventional recovery process is likely”
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: The work is preliminary metallurgical test work on a composite sample, not pilot-scale testing.
Evidence · text
“preliminary metallurgical test work”
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: The work is described on a single composite sample from the NOA and Reservatorio deposits.
Evidence · text
“a composite sample from the NOA and Reservatorio Deposits”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The JORC appendix states that standards and duplicates were used.
Evidence · text
“Standards and duplicates we used”
True Width Disclosedneutral · Story-specific tag
Actual thickness perpendicular to structure is stated, not just downhole length.
Why it applies: This release does not state true width for any drilling interval; no such tag applies.
Evidence · text
“true width not known”
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("gravity")
Multi Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 2 distinct composites were tested
Extracted facts
Stored fact records: 18. Some facts used in scoring do not have a stored record.
Metallurgical Results (18)
flotationMina do Barroso · lithiumRecovery: 83.7 %Head Grade: 1.95Head Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- single stage flotation
- Sample
- Test work Composite
Recovery
- Recovery
- 83.7 %
- Recovery Basis
- actual_test
- Head Grade
- 1.95
- Head Grade Unit
- % Li2O
- Conc. Grade
- 5.9
- Conc. Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is the key metallurgical result: a strong flotation recovery from a high-grade composite with a saleable concentrate grade.
Positive factors
- 83.7% Li2O recovery is reported
- head grade of ~1.95% Li2O is high
- simple one stage float achieved ~5.9% Li2O concentrate
- conventional commercially available processing technologies were used
Negative factors
- preliminary test work only
- further optimisation is still required
Evidence · text
“achieved ~83.7% Li₂O recovery at ~5.9% Li₂O”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 83.7% is at or above the exceptional band (80%)
gravityMina do Barroso · lithiumRecovery: 60 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- heavy liquid separation
- Sample
- Test work Composite
Recovery
- Recovery
- 60 %
- Recovery Basis
- actual_test
- Conc. Grade
- 8
- Conc. Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The HLS results support the process concept and point to a high-grade concentrate, although the document does not state a direct HLS recovery figure.
Positive factors
- HLS shows a very pure (~8%) Li2O product can be produced
- gravity-style separation indicates recoverable lithium minerals
Negative factors
- recovery is not explicitly stated for the HLS product
- preliminary work only
Evidence · text
“HLS shows a very pure (~8%) Li₂O product can be produced”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 60% is below the weak band (65%)
Fact 3Mina do Barroso · lithiumHead Grade: 1.95Head Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Sample
- Composite sample from the NOA and Reservatorio Deposits
Recovery
- Head Grade
- 1.95
- Head Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The composite head grade helps anchor the metallurgy results and confirms the feed is lithium-rich.
Positive factors
- single analysis of the combined sample confirmed a high Li2O head grade
Negative factors
- head grade is from a composite sample rather than a drilled interval
- preliminary characterisation only
Evidence · text
“confirmed a high Li₂O head grade (~1.95% Li₂O)”
Fact 4Mina do Barroso · iron_oreHead Grade: 0.902Head Grade Unit: % Fe2O3View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- iron_ore
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Sample
- Composite sample from the NOA and Reservatorio Deposits
Recovery
- Head Grade
- 0.902
- Head Grade Unit
- % Fe2O3
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The low iron head grade is supportive of concentrate purity, but it is secondary to the lithium result.
Positive factors
- low Fe2O3 head grade is explicitly reported
Negative factors
- no economic significance is discussed for the iron grade
Evidence · text
“low Fe₂O₃ head grade (~0.9%)”
gravityMina do Barroso · lithiumRecovery: 60 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- heavy liquid separation at SG 2.7 and 2.96
- Sample
- Test work Composite P100 6.3mm +1mm
Recovery
- Recovery
- 60 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The gravity separation work indicates a viable route for rejecting barren material, but the result is framed as a suggestion rather than a final recovery outcome.
Positive factors
- DMS at SG 2.7 is suggested as ~60% mass rejection is feasible
Negative factors
- this is a process suggestion rather than a direct recovery result
- optimisation remains required
Evidence · text
“~60% mass rejection is feasible at ~10% Li2O loss”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 60% is below the weak band (65%)
gravityMina do Barroso · lithiumRecovery: 64.34 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- heavy liquid separation at SG 2.7 and 2.96
- Sample
- Test work Composite P100 6.3mm -1+0.045mm
Recovery
- Recovery
- 64.34 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is a detailed HLS result from the finer fraction, showing the ore responds to gravity-style separation.
Positive factors
- HLS partitioning results are reported for the finer size fraction
Negative factors
- the document does not explicitly describe this as a final recovery metric
Evidence · text
“SG 2.96 Sinks 20.46% 79290 64.34%”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 64.34% is below the weak band (65%)
gravityMina do Barroso · lithiumRecovery: 23.5 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- heavy liquid separation at SG 2.7 and 2.96
- Sample
- Test work Composite P100 6.3mm -1+0.045mm
Recovery
- Recovery
- 23.5 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is another HLS result from the finer fraction, useful for process understanding but not the headline result.
Positive factors
- HLS partitioning results are reported for the finer size fraction
Negative factors
- the document does not explicitly describe this as a final recovery metric
Evidence · text
“SG 2.96 Float 13.46% 44020 23.50%”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 23.5% is below the weak band (65%)
gravityMina do Barroso · lithiumRecovery: 12.16 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- heavy liquid separation at SG 2.7 and 2.96
- Sample
- Test work Composite P100 6.3mm -1+0.045mm
Recovery
- Recovery
- 12.16 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is the SG 2.7 float fraction result from the finer-size HLS test.
Positive factors
- HLS partitioning results are reported for the finer size fraction
Negative factors
- the document does not explicitly describe this as a final recovery metric
Evidence · text
“SG 2.7 Float 66.08% 4640 12.16%”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 12.16% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 35.18 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 35.18 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This row captures one of the flotation circuit streams from the sighter test and helps document the process response.
Positive factors
- flotation testwork is reported at P80 0.106mm
- results provide process detail for the composite
Negative factors
- this is a concentrate stream grade rather than a final product recovery statement
- multiple circuit streams are listed
Evidence · table
“Re-Cl Con 1 11.28% 63010 35.18% 0.752 15.96% 63.446 9.74%”
Context: Flotation table; Re-Cl Con 1; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 35.18% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 18.79 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 18.79 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: Additional flotation circuit data from the sighter test are disclosed here.
Positive factors
- flotation testwork is reported at P80 0.106mm
Negative factors
- this is a circuit stream result rather than a final product summary
Evidence · table
“Re-Cl Con 2 6.48% 58590 18.79% 0.737 8.98% 63.874 5.63%”
Context: Flotation table; Re-Cl Con 2; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 18.79% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 22.18 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 22.18 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: Additional flotation circuit data from the sighter test are disclosed here.
Positive factors
- flotation testwork is reported at P80 0.106mm
Negative factors
- this is a circuit stream result rather than a final product summary
Evidence · table
“Re-Cl Con 3 7.82% 57350 22.18% 0.669 9.83% 64.044 6.81%”
Context: Flotation table; Re-Cl Con 3; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 22.18% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 7.57 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 7.57 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This is a lower-recovery flotation concentrate stream from the same sighter test.
Positive factors
- flotation testwork is reported at P80 0.106mm
Negative factors
- this is a circuit stream result rather than a final product summary
Evidence · table
“Re-Cl Con 4 3.24% 47200 7.57% 0.580 3.53% 65.600 2.89%”
Context: Flotation table; Re-Cl Con 4; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 7.57% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 1.16 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 1.16 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The tailings stream result shows residual lithium remaining in the flotation tailings.
Positive factors
- flotation testwork is reported at P80 0.106mm
Negative factors
- this is a tailings stream result
Evidence · table
“Cl Tail 12.28% 1910 1.16% 0.145 3.35% 76.834 12.83%”
Context: Flotation table; Cl Tail; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 1.16% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 1.04 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 1.04 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The rougher tailing stream still retains some lithium, indicating incomplete recovery in the test circuit.
Positive factors
- flotation testwork is reported at P80 0.106mm
Negative factors
- this is a tailings stream result
Evidence · table
“Ro Tail 39.75% 530 1.04% 0.072 5.38% 80.672 43.61%”
Context: Flotation table; Ro Tail; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 1.04% is below the weak band (65%)
flotationMina do Barroso · lithiumRecovery: 48.3 %View all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- rougher-cleaner-re-cleaner spodumene flotation
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Recovery
- Recovery
- 48.3 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The ultrafine fraction retains substantial lithium and is part of the process characterisation.
Positive factors
- flotation testwork is reported at P80 0.106mm
Negative factors
- this is a -0.02mm fraction result rather than the headline product
Evidence · table
“-0.02mm 9.52% 15410 7.26% 2.699 48.30% 69.356 8.98%”
Context: Flotation table; -0.02mm; Li2O% dist.
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 48.3% is below the weak band (65%)
Fact 16Mina do Barroso · lithiumView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
Recovery
- Conc. Grade
- 5.9
- Conc. Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: A ~5.9% Li2O concentrate is a strong product grade for spodumene processing and supports the positive interpretation of the flotation result.
Positive factors
- headline flotation result achieved ~5.9% Li2O concentrate grade
- the company describes this as very positive
Negative factors
- optimisation is still required
- the figure is approximate
Evidence · text
“achieved ~83.7% Li2O recovery at ~5.9% Li2O”
Fact 17Mina do Barroso · lithiumView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Sample
- Test work Composite P80 0.106mm Sighter Three-Stage Flotation Test #1
- Grind P80
- 106 µm
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: The grinding size is an important process parameter for the flotation programme.
Positive factors
- P80 0.106mm is explicitly stated for the flotation test
Negative factors
- no recovery figure attached to this specific note
Evidence · text
“P80 0.106mm”
Fact 18Mina do Barroso · lithiumHead Grade: 1.95Head Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Mina do Barroso
- Commodity
- lithium
- Region
- northern portugal
- Reported Region
- northern Portugal
- Ticker
- SAV
Test Work
- Sample
- Test work Composite
Recovery
- Head Grade
- 1.95
- Head Grade Unit
- % Li2O
Lab
- Laboratory
- Nagrom Metallurgical
Location
- Loc. Confidence
- medium
Review
- Needs Review
- No
- Historical
- No
Reasoning: This repeated composite head grade is included because it appears in the release as a core result supporting the testwork.
Positive factors
- headline composite grade is high
Negative factors
- the grade is from a composite sample rather than a deposit-wide estimate
Evidence · table
“Composite Mass Li2O Fe2O3 kg % % Test work Composite 35.9 1.95% 0.902”
Context: Composite table; Test work Composite; Li2O
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.