# PNN: SANTA ANNA MINERALOGICAL STUDY CONFIRMS NB RICH PYROCHLORE

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/pnn-santa-anna-mineralogical-study-confirms-nb-rich-pyrochlore--eff14d7e-7aa8-4b45-9fcc-bc4902d28742

Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03149381

Publisher: asx

Original announcement: 2026-10-06T22:21:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: 2026-10-06T23:12:50.795Z

Atlas analysis updated: 2026-10-06T23:12:50.795Z

- Company: Power Minerals Limited

- Ticker: PNN

- Exchange: ASX

- Region: Goiás State, Brazil

- Primary commodity: Niobium

- Secondary commodities: Rare earths

- Document categories: Metallurgy

- Extracted: 2026-10-06 23:12:51 UTC

Narrative sentiment: 0.70 · Bullish

## Minestarters Atlas summary

Power Minerals has completed a mineralogical study at the Santa Anna Project in Brazil, confirming that niobium is hosted in high-grade pyrochlore. The study identified pyrochlore compositions of up to 73.9% Nb2O5, placing the mineral at the upper end of global carbonatite-hosted deposits.

Reasoning: The mineralogical study confirms high-grade niobium-bearing pyrochlore, which de-risks the mineralogical basis for future metallurgical processing.

- Positive factor: High niobium content in pyrochlore \(up to 73.9% Nb2O5\)

- Positive factor: Mineralogy provides a strong basis for upcoming metallurgical testwork

- Positive factor: Pyrochlore composition is at the upper end of global benchmarks

Facts used in scoring: 2

## Classification and evidence

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: The study is intended to guide beneficiation approaches and metallurgical testwork.

Evidence · text

> will be used in planned metallurgical testwork programs

**Single Domain Only**

Polarity: negative

Definition: Testing limited to one composite or domain — representativeness not established.

Why it applies: only one composite was tested

## Extracted facts

Stored fact records: 2. Some facts used in scoring do not have a stored record.

## Metallurgical Results (2)

### mineralogical study

[Link to this fact](https://atlas-staging.minestarters.com/news/pnn-santa-anna-mineralogical-study-confirms-nb-rich-pyrochlore--eff14d7e-7aa8-4b45-9fcc-bc4902d28742#fact-metallurgical-facts-0)

Santa Anna · niobium

#### Identity

- Project: Santa Anna
- Commodity: niobium
- Region: brazil
- Reported Region: Goiás State, Brazil
- Ticker: PNN

#### Test Work

- Program Status: detailed
- Test Type: mineralogical study
- Sample: Santa Anna pyrochlore \(average composition\)

#### Recovery

- Head Grade: 68.8
- Head Grade Unit: % Nb2O5

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-10-06T00:00:00.000Z

Reasoning: The average composition of 68.8% Nb2O5 is high and comparable to major global operations.

- Positive factor: High average Nb2O5 composition of 68.8%

Evidence · text

> The analyses yielded an average composition of 68.8% Nb₂O₅ \(niobium pentoxide\)

### mineralogical study

[Link to this fact](https://atlas-staging.minestarters.com/news/pnn-santa-anna-mineralogical-study-confirms-nb-rich-pyrochlore--eff14d7e-7aa8-4b45-9fcc-bc4902d28742#fact-metallurgical-facts-1)

Santa Anna · niobium

#### Identity

- Project: Santa Anna
- Commodity: niobium
- Region: brazil
- Reported Region: Goiás State, Brazil
- Ticker: PNN

#### Test Work

- Program Status: detailed
- Test Type: mineralogical study
- Sample: Santa Anna pyrochlore \(maximum composition\)

#### Recovery

- Head Grade: 73.9
- Head Grade Unit: % Nb2O5

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-10-06T00:00:00.000Z

Reasoning: The maximum composition of 73.9% Nb2O5 is at the upper end of reported global compositions.

- Positive factor: Exceptional maximum Nb2O5 composition of 73.9%

Evidence · text

> maximum of 73.9% Nb₂O₅

## 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.