Rio Silver Inc. Reports: Initial Silver - Gold - Lead Recoveries of 85 %, 74 % and 77% Respectively From the Maria Norte in Central Peru
Original announcement by tmx on
- Company
- Rio Silver Inc.
- Ticker
- RYO
- Exchange
- TSX
- Region
- Central Peru
- Primary commodity
- Silver
- Secondary commodities
- Gold, Lead
- Document categories
- Metallurgy
- Extracted
- 2026-08-21 00:21:16 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Rio Silver reported initial metallurgical results from the Maria Norte property in Peru, demonstrating high recoveries for silver, gold, and lead using flotation. The tests produced two concentrates with low arsenic levels, supporting the company's processing strategy.
Reasoning: Initial flotation test work on a bulk sample shows strong recoveries for silver (85%), gold (74%), and lead (77%) with low arsenic penalties.
Positive factors
- High silver and gold recoveries
- Low arsenic levels in concentrates
- High grade concentrates
Negative factors
- Initial test work scale is limited (bulk sample from surface showing)
Facts used in scoring: 9
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Silver recovery of 85% is in the exceptional/strong band for flotation.
Evidence · text
“Initial Silver - Gold - Lead Recoveries of 85 %, 74 % and 77%”
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: The release mentions low arsenic and successful flotation of quartz-lead veins.
Evidence · text
“concentrates are expected to contain low amounts of arsenic”
Extracted facts
Stored fact records: 9. Some facts used in scoring do not have a stored record.
Metallurgical Results (9)
flotationsilverRecovery: 85 %Head Grade: 4.32Head Grade Unit: ounces per metric tonneView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- Bulk composite sample from surface quartz-lead sulphide vein
Recovery
- Recovery
- 85 %
- Recovery Basis
- actual_test
- Head Grade
- 4.32
- Head Grade Unit
- ounces per metric tonne
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: 85% silver recovery is a strong initial result for flotation.
Positive factors
- 85% recovery is strong for flotation
flotationgoldRecovery: 74 %Head Grade: 3Head Grade Unit: grams per metric tonneView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- Bulk composite sample from surface quartz-lead sulphide vein
Recovery
- Recovery
- 74 %
- Recovery Basis
- actual_test
- Head Grade
- 3
- Head Grade Unit
- grams per metric tonne
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: 74% gold recovery is a solid initial result.
Positive factors
- 74% gold recovery
flotationleadRecovery: 77 %Head Grade: 4.05Head Grade Unit: %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- Bulk composite sample from surface quartz-lead sulphide vein
Recovery
- Recovery
- 77 %
- Recovery Basis
- actual_test
- Head Grade
- 4.05
- Head Grade Unit
- %
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: 77% lead recovery is a good initial result for flotation.
Positive factors
- 77% lead recovery
flotationsilverView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- First concentrate (25:1 ratio)
Recovery
- Conc. Grade
- 53.64
- Conc. Grade Unit
- ounces per metric tonne
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: Concentrate grade of 53.64 oz/t Ag is high.
Positive factors
- High grade concentrate
flotationgoldView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- First concentrate (25:1 ratio)
Recovery
- Conc. Grade
- 14.57
- Conc. Grade Unit
- grams per metric tonne
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: Concentrate grade of 14.57 g/t Au is high.
Positive factors
- High grade concentrate
flotationleadView all detailsHide details
Identity
- Commodity
- lead
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- First concentrate (25:1 ratio)
Recovery
- Conc. Grade
- 54.17
- Conc. Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: Concentrate grade of 54.17% Pb is high.
Positive factors
- High grade concentrate
flotationsilverView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- Second concentrate (6.2:1 ratio)
Recovery
- Conc. Grade
- 9.67
- Conc. Grade Unit
- ounces per metric tonne
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: Second concentrate grade is lower than the first.
flotationgoldView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- Second concentrate (6.2:1 ratio)
Recovery
- Conc. Grade
- 10.16
- Conc. Grade Unit
- grams per metric tonne
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: Second concentrate grade is lower than the first.
flotationleadView all detailsHide details
Identity
- Commodity
- lead
- Ticker
- RYO
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- Second concentrate (6.2:1 ratio)
Recovery
- Conc. Grade
- 13.85
- Conc. Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-04-08T00:00:00.000Z
Reasoning: Second concentrate grade is lower than the first.
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.