Ridgestone Releases Maiden Mineral Resource Estimate at Guadalupe y Calvo, Mexico
Original announcement by tmx on
- Company
- Ridgestone Mining Inc.
- Ticker
- RMI
- Exchange
- TSX
- Region
- Chihuahua, Mexico
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Resource update
- Extracted
- 2026-08-26 07:06:16 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Ridgestone Mining has announced its maiden NI 43-101 Mineral Resource Estimate for the Guadalupe y Calvo gold-silver project in Mexico. The estimate includes approximately 6.43 Mt of Indicated and 3.07 Mt of Inferred resources, totaling roughly 815,000 ounces of gold-equivalent.
Reasoning: The announcement of a maiden NI 43-101 resource estimate is a major milestone, though the high proportion of Inferred material (approx 48% of total tonnes) limits immediate economic confidence.
Positive factors
- Maiden resource establishment
- Significant gold-equivalent ounces
- QP sign-off provided
Negative factors
- 100% Inferred component in some segments
- High proportion of Inferred resource
Facts used in scoring: 6
Classification and evidence
Maiden Resourceneutral
First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.
Why it applies: The announcement explicitly states this is a maiden NI 43-101 Mineral Resource Estimate.
Evidence · text
“announce a maiden National Instrument 43-101 (NI 43-101) Mineral Resource Estimate”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The estimate complies with NI 43-101 and was prepared by an independent QP.
Evidence · text
“complies with National Instrument 43-101 ("NI 43-101")”
QP/CP Signedpositive
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: Marc Jutras, P.Eng., is named as the independent Qualified Person who reviewed and approved the release.
Evidence · text
“prepared by Mr. Marc Jutras of Ginto Consulting Inc. ("Ginto"), an independent Qualified Person”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The release specifies cut-off grades for both in-pit and underground scenarios.
Evidence · text
“at a cut-off grade of 0.27 g/t AuEq in-pit and 1.33 g/t AuEq underground”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Resource Estimates (6)
indicatedsilverTonnes: 6427444Grade: 50.5Grade Unit: g/tContained Metal: 10435243Contained Unit: ozView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- RMI
Resource Data
- Category
- indicated
- Tonnes
- 6427444
- Grade
- 50.5
- Grade Unit
- g/t
- Contained Metal
- 10435243
- Contained Unit
- oz
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-05-10T00:00:00.000Z
Reasoning: Indicated silver grade of 50.5 g/t is solid for a polymetallic system.
Evidence · table
“50.5”
Context: 6,427,444
indicatedgoldTonnes: 6427444Grade: 1.05Grade Unit: g/tContained Metal: 216866Contained Unit: ozView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RMI
Resource Data
- Category
- indicated
- Tonnes
- 6427444
- Grade
- 1.05
- Grade Unit
- g/t
- Contained Metal
- 216866
- Contained Unit
- oz
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-05-10T00:00:00.000Z
Reasoning: Indicated gold grade of 1.05 g/t provides a solid base for the resource.
Evidence · table
“1.05”
Context: 6,427,444
indicatedgoldTonnes: 6427444Grade: 1.72Grade Unit: g/t AuEqView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RMI
Resource Data
- Category
- indicated
- Tonnes
- 6427444
- Grade
- 1.72
- Grade Unit
- g/t AuEq
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-05-10T00:00:00.000Z
Reasoning: Indicated gold-equivalent grade of 1.72 g/t AuEq.
Evidence · table
“1.72”
Context: 6,427,444
inferredsilverTonnes: 3074146Grade: 94.2Grade Unit: g/tContained Metal: 9313410Contained Unit: ozView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- RMI
Resource Data
- Category
- inferred
- Tonnes
- 3074146
- Grade
- 94.2
- Grade Unit
- g/t
- Contained Metal
- 9313410
- Contained Unit
- oz
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-05-10T00:00:00.000Z
Reasoning: High silver grade in the inferred category.
Evidence · table
“94.2”
Context: 3,074,146
inferredgoldTonnes: 3074146Grade: 3.4Grade Unit: g/tContained Metal: 335618Contained Unit: ozView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RMI
Resource Data
- Category
- inferred
- Tonnes
- 3074146
- Grade
- 3.4
- Grade Unit
- g/t
- Contained Metal
- 335618
- Contained Unit
- oz
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-05-10T00:00:00.000Z
Reasoning: Strong gold grade in the inferred category.
Evidence · table
“3.40”
Context: 3,074,146
inferredgoldTonnes: 3074146Grade: 4.65Grade Unit: g/t AuEqView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- RMI
Resource Data
- Category
- inferred
- Tonnes
- 3074146
- Grade
- 4.65
- Grade Unit
- g/t AuEq
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-05-10T00:00:00.000Z
Reasoning: High gold-equivalent grade in the inferred category.
Evidence · table
“4.65”
Context: 3,074,146
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.