Rapid Silver and Gold Recoveries From Metallurgical Test Work
Original announcement by prnewswire on
- Company
- Sun Silver Limited
- Ticker
- SS1
- Exchange
- Unavailable
- Region
- Nevada, USA
- Primary commodity
- Silver
- Secondary commodities
- Gold, Antimony
- Document categories
- Metallurgy
- Extracted
- 2026-10-14 11:33:57 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Sun Silver reported rapid silver and gold recoveries from cyanide leach testwork at the Maverick Silver Project in Nevada. Results from two composite samples demonstrated high extraction rates within 24 to 48 hours, supporting the evaluation of a tank-leach/CIL processing route.
Reasoning: Highly encouraging metallurgical results showing rapid silver and gold recoveries under optimised cyanide leach conditions, supporting a tank-leach/CIL pathway.
Positive factors
- Rapid extraction kinetics (24-48 hours)
- High recoveries for both silver and gold
- Successful reagent optimisation (lower cyanide/lead nitrate)
- Potential for antimony recovery via tank-leach/CIL
Negative factors
- Interim results are indicative point-in-time extractions
Facts used in scoring: 4
Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The company is evaluating tank-leach/CIL processing pathways.
Evidence · text
“Tank-leach/CIL may provide greater flexibility for potential antimony recovery.”
Heap Leach Routeneutral
Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
Why it applies: the document describes a heap_leach route ("heap-leach")
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Metallurgical Results (4)
cyanide leach bottle-rollMaverick Silver Project · silverRecovery: 84.5 %View all detailsHide details
Identity
- Project
- Maverick Silver Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SS1
Test Work
- Program Status
- optimization
- Test Type
- cyanide leach bottle-roll
- Processing Route
- cyanide leach
- Sample
- Sample 1 (LT15) - 147kg total weight, oxide and transitional mineralisation, P80 53µm grind, 5,000 ppm initial / 2,500 ppm-maintained NaCN
- Grind P80
- 53 µm
Recovery
- Recovery
- 84.5 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Independent Metallurgical Operations (IMO), a subsidiary of SGS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: Strong silver recovery achieved under high cyanide regime.
Positive factors
- Rapid extraction within 24 hours
cyanide leach bottle-rollMaverick Silver Project · goldRecovery: 83.6 %View all detailsHide details
Identity
- Project
- Maverick Silver Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SS1
Test Work
- Program Status
- optimization
- Test Type
- cyanide leach bottle-roll
- Processing Route
- cyanide leach
- Sample
- Sample 1 (LT15) - 147kg total weight, oxide and transitional mineralisation, P80 53µm grind, 5,000 ppm initial / 2,500 ppm-maintained NaCN
- Grind P80
- 53 µm
Recovery
- Recovery
- 83.6 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Independent Metallurgical Operations (IMO), a subsidiary of SGS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: Strong gold recovery achieved under high cyanide regime.
Positive factors
- Rapid extraction within 24 hours
cyanide leach bottle-rollMaverick Silver Project · silverRecovery: 87.6 %View all detailsHide details
Identity
- Project
- Maverick Silver Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SS1
Test Work
- Program Status
- optimization
- Test Type
- cyanide leach bottle-roll
- Processing Route
- cyanide leach
- Sample
- Sample 2 (LT22) - 127kg total weight, oxide and transitional mineralisation, P80 53µm grind, 3,000 ppm initial / 1,500 ppm-maintained NaCN, 500 ppm lead nitrate
- Grind P80
- 53 µm
Recovery
- Recovery
- 87.6 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Independent Metallurgical Operations (IMO), a subsidiary of SGS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: Excellent silver recovery achieved under a more moderate reagent regime.
Positive factors
- High recovery achieved with reduced cyanide dosage
- Successful use of lead nitrate to accelerate kinetics
cyanide leach bottle-rollMaverick Silver Project · goldRecovery: 87.5 %View all detailsHide details
Identity
- Project
- Maverick Silver Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada, USA
- Ticker
- SS1
Test Work
- Program Status
- optimization
- Test Type
- cyanide leach bottle-roll
- Processing Route
- cyanide leach
- Sample
- Sample 2 (LT22) - 127kg total weight, oxide and transitional mineralisation, P80 53µm grind, 3,000 ppm initial / 1,500 ppm-maintained NaCN, 500 ppm lead nitrate
- Grind P80
- 53 µm
Recovery
- Recovery
- 87.5 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Independent Metallurgical Operations (IMO), a subsidiary of SGS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: Excellent gold recovery achieved under a more moderate reagent regime.
Positive factors
- High recovery achieved with reduced cyanide dosage
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.