# RETRANSMISSION: Ridgestone Releases Maiden Mineral Resource Estimate at Guadalupe y Calvo, Mexico

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1

Original source: https://money.tmx.com/en/quote/RMI/news/4953846333893824/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe

Publisher: tmx

Original announcement: 2021-05-11T13:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- 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 07:02:52 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas 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 356,000 oz AuEq in the Indicated category and 460,000 oz AuEq in the Inferred category.

Reasoning: Maiden NI 43-101 resource estimate for a gold-silver project, establishing a significant baseline but with a high Inferred component.

- Positive factor: Maiden resource establishment

- Positive factor: Significant gold-equivalent ounces

- Positive factor: QP sign-off provided

- Negative factor: High proportion of Inferred resource

- Negative factor: Assumed metallurgical recoveries

Facts used in scoring: 6

## Classification and evidence

**Maiden Resource**

Polarity: neutral

Definition: First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.

Why it applies: First formal MRE for the project.

Evidence · text

> maiden National Instrument 43-101 \(NI 43-101\) Mineral Resource Estimate

**QP/CP Signed**

Polarity: positive

Definition: 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 QP.

Evidence · text

> The estimate was completed by Marc Jutras, P.Eng., M.A.Sc. of Ginto Consulting Inc. and complies with National Instrument 43-101

**Cut-off Disclosed**

Polarity: positive

Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: Cut-off grades for in-pit and underground scenarios are explicitly stated.

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)

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1#fact-resource-facts-0)

silver

#### 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: 2021-05-11T00:00:00.000Z

Reasoning: Indicated silver grade component of the maiden resource.

Evidence · table

> 50.5

Context: 6,427,444

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1#fact-resource-facts-1)

gold

#### 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: 2021-05-11T00:00:00.000Z

Reasoning: Indicated gold grade component of the maiden resource.

Evidence · table

> 1.05

Context: 6,427,444

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1#fact-resource-facts-2)

gold

#### Identity

- Commodity: gold
- Ticker: RMI

#### Resource Data

- Category: indicated
- Tonnes: 6427444
- Grade: 1.72
- Grade Unit: g/t AuEq
- Contained Metal: 356003
- Contained Unit: oz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2021-05-11T00:00:00.000Z

Reasoning: Indicated gold-equivalent grade component of the maiden resource.

Evidence · table

> 1.72

Context: 6,427,444

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1#fact-resource-facts-3)

silver

#### 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: 2021-05-11T00:00:00.000Z

Reasoning: Inferred silver grade component of the maiden resource.

Evidence · table

> 94.2

Context: 3,074,146

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1#fact-resource-facts-4)

gold

#### 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: 2021-05-11T00:00:00.000Z

Reasoning: Inferred gold grade component of the maiden resource.

Evidence · table

> 3.40

Context: 3,074,146

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/retransmission-ridgestone-releases-maiden-mineral-resource-estimate-at-guadalupe--6acef287-bf63-431c-a7c6-a08686c6d7b1#fact-resource-facts-5)

gold

#### Identity

- Commodity: gold
- Ticker: RMI

#### Resource Data

- Category: inferred
- Tonnes: 3074146
- Grade: 4.65
- Grade Unit: g/t AuEq
- Contained Metal: 459796
- Contained Unit: oz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2021-05-11T00:00:00.000Z

Reasoning: Inferred gold-equivalent grade component of the maiden resource.

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.