EDM Announces Successful Results of Dense Media Separation Study on High-Grade Ores of the Scotia Mine
Original announcement by tmx on
- Company
- EDM Resources Inc.
- Ticker
- EDM
- Exchange
- TSX
- Region
- Nova Scotia
- Primary commodity
- Zinc
- Secondary commodities
- Lead
- Document categories
- Metallurgy
- Extracted
- 2026-08-21 08:55:59 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
EDM Resources Inc. announced successful initial Heavy Liquid Separation (HLS) test results on high-grade zinc and lead composite samples from its Scotia Mine. The bench-scale tests, simulating Dense Media Separation (DMS), showed exceptional recoveries of up to 99.4% for lead and 97.6% for zinc, alongside significant grade increases for both metals. These results suggest a strong potential to reduce mineral processing costs and access previously uneconomic areas of the deposit.
Reasoning: Initial HLS test work on high-grade zinc and lead samples from the Scotia Mine demonstrated excellent recoveries (97.3-99.4%) and significant grade increases (up to 35% for zinc, 26% for lead) at an optimal SG of 3.00, indicating a strong potential for cost reduction and improved economics through pre-concentration via DMS.
Positive factors
- high_recoveries
- significant_grade_increase
- potential_cost_reduction
- environmentally_friendly_process
- qp_signoff
Negative factors
- bench_scale_only
- limited_sample_coverage
Facts used in scoring: 6
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Zinc recoveries of 97.3-97.6% and lead recoveries of 99.4% are exceptionally high for the DMS process, indicating excellent metal separation.
Evidence · text
“retaining 97.3% of the Zinc and 99.4% of the Lead”
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: The tests are Heavy Liquid Separation (HLS), which is a bench-scale process simulating DMS, not a pilot plant, indicating early-stage test work.
Evidence · text
“initial Heavy Liquid Separation ("HLS") test results”
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: Mr. Curtis Mohns, P.Eng., a Qualified Person, approved the technical information related to the HLS test work.
Evidence · text
“Mr. Curtis Mohns, P.Eng., Senior Metallurgist for SGS Laboratories and a Qualified Person as defined under NI43-101, has approved the technical information contained in this news release related to the HLS test work.”
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: The Dense Media Separation process is described as a 'relatively simple, environmentally friendly and cost-efficient metallurgical process'.
Evidence · text
“As a relatively simple, environmentally friendly and cost-efficient metallurgical process”
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: The tests were performed on two 10-kilogram samples collected from 'high-grade mineralized zones', suggesting limited variability testing across different ore domains.
Evidence · text
“performed on material from two 10-kilogram samples that were collected from the high-grade mineralized zones of the Scotia Mine”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Metallurgical Results (6)
Fact 1Scotia Mine · zincHead Grade: 18.4Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- zinc
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- preliminary
- Sample
- High-Grade Sample Head Grade
Recovery
- Head Grade
- 18.4
- Head Grade Unit
- %
Lab
- Laboratory
- SGS
- Consultant
- Mr. Curtis Mohns, P.Eng.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-01-06T00:00:00.000Z
Reasoning: This fact provides the initial head grade for the high-grade sample, serving as a baseline for the metallurgical tests.
Evidence · table
“18.4”
Context: High-Grade
Fact 2Scotia Mine · leadHead Grade: 36.8Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- lead
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- preliminary
- Sample
- High-Grade Sample Head Grade
Recovery
- Head Grade
- 36.8
- Head Grade Unit
- %
Lab
- Laboratory
- SGS
- Consultant
- Mr. Curtis Mohns, P.Eng.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-01-06T00:00:00.000Z
Reasoning: This fact provides the initial head grade for the high-grade sample, serving as a baseline for the metallurgical tests.
Evidence · table
“36.8”
Context: High-Grade
HLSScotia Mine · zincRecovery: 97.3 %Head Grade: 19.5Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- zinc
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- preliminary
- Test Type
- HLS
- Processing Route
- Dense Media Separation
- Sample
- Test T1 (12.7mm crushed size) at 3.00 SG
- Grind P80
- 12700 µm
Recovery
- Recovery
- 97.3 %
- Recovery Basis
- actual_test
- Head Grade
- 19.5
- Head Grade Unit
- %
- Conc. Grade
- 24.8
- Conc. Grade Unit
- %
- Mass Pull
- 76.5 %
Lab
- Laboratory
- SGS
- Consultant
- Mr. Curtis Mohns, P.Eng.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-01-06T00:00:00.000Z
Reasoning: Test T1 demonstrated exceptional zinc recovery of 97.3% and a significant grade increase to 24.8% Zn at a 3.00 SG cut-off, indicating strong pre-concentration potential, though it is a bench-scale test.
Positive factors
- high_recoveries
- significant_grade_increase
Negative factors
- bench_scale_only
Evidence · table
“97.3”
Context: 76.5
HLSScotia Mine · leadRecovery: 99.4 %Head Grade: 35.7Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- lead
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- preliminary
- Test Type
- HLS
- Processing Route
- Dense Media Separation
- Sample
- Test T1 (12.7mm crushed size) at 3.00 SG
- Grind P80
- 12700 µm
Recovery
- Recovery
- 99.4 %
- Recovery Basis
- actual_test
- Head Grade
- 35.7
- Head Grade Unit
- %
- Conc. Grade
- 46.4
- Conc. Grade Unit
- %
- Mass Pull
- 76.5 %
Lab
- Laboratory
- SGS
- Consultant
- Mr. Curtis Mohns, P.Eng.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-01-06T00:00:00.000Z
Reasoning: Test T1 achieved exceptional lead recovery of 99.4% and a substantial grade increase to 46.4% Pb at a 3.00 SG cut-off, highlighting strong pre-concentration potential, despite being a bench-scale test.
Positive factors
- high_recoveries
- significant_grade_increase
Negative factors
- bench_scale_only
Evidence · table
“99.4”
Context: 76.5
HLSScotia Mine · zincRecovery: 97.6 %Head Grade: 19.4Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- zinc
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- preliminary
- Test Type
- HLS
- Processing Route
- Dense Media Separation
- Sample
- Test T2 (6.3mm crushed size) at 3.00 SG
- Grind P80
- 6300 µm
Recovery
- Recovery
- 97.6 %
- Recovery Basis
- actual_test
- Head Grade
- 19.4
- Head Grade Unit
- %
- Conc. Grade
- 23.6
- Conc. Grade Unit
- %
- Mass Pull
- 80.2 %
Lab
- Laboratory
- SGS
- Consultant
- Mr. Curtis Mohns, P.Eng.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-01-06T00:00:00.000Z
Reasoning: Test T2 demonstrated exceptional zinc recovery of 97.6% and a significant grade increase to 23.6% Zn at a 3.00 SG cut-off, confirming strong pre-concentration potential at a finer crush size, though it is a bench-scale test.
Positive factors
- high_recoveries
- significant_grade_increase
Negative factors
- bench_scale_only
Evidence · table
“97.6”
Context: 80.2
HLSScotia Mine · leadRecovery: 99.4 %Head Grade: 33.5Head Grade Unit: %View all detailsHide details
Identity
- Project
- Scotia Mine
- Commodity
- lead
- Region
- canada_ns
- Reported Region
- Nova Scotia
- Ticker
- EDM
Test Work
- Program Status
- preliminary
- Test Type
- HLS
- Processing Route
- Dense Media Separation
- Sample
- Test T2 (6.3mm crushed size) at 3.00 SG
- Grind P80
- 6300 µm
Recovery
- Recovery
- 99.4 %
- Recovery Basis
- actual_test
- Head Grade
- 33.5
- Head Grade Unit
- %
- Conc. Grade
- 41.4
- Conc. Grade Unit
- %
- Mass Pull
- 80.2 %
Lab
- Laboratory
- SGS
- Consultant
- Mr. Curtis Mohns, P.Eng.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-01-06T00:00:00.000Z
Reasoning: Test T2 achieved exceptional lead recovery of 99.4% and a substantial grade increase to 41.4% Pb at a 3.00 SG cut-off, confirming strong pre-concentration potential at a finer crush size, despite being a bench-scale test.
Positive factors
- high_recoveries
- significant_grade_increase
Negative factors
- bench_scale_only
Evidence · table
“99.4”
Context: 80.2
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.