Field Investigation Report - Version 1.0

Finding Gold Is Only Half the Problem.

A field investigation into Eco Goldex and modern precious metals recovery for small-scale operators. What works, what needs verification, and what questions every serious miner should be asking before committing to a recovery system.

By Eric Schultz - Schultz Resource Management PLLC - GoldClaimsForSale.com

✓ Both editions include 1 year Follow the Rust Newsletter✓ Version 1.0 - ongoing investigation✓ Field-tested observations, not marketing copy
Field Investigation Report
Eco Goldex Field Guide
A Field Investigation into Modern Precious Metal Recovery
ERIC SCHULTZ
Schultz Resource Management PLLC
Coming Soon
The Problem

Finding Gold Is the Easy Part. Recovering It Is Where the Real Work Begins.

Most prospectors and small operators face the same moment eventually. You know the gold is there. The assay confirms it. But your recovery system is only capturing a fraction of the actual value.

▸Microscopic gold and sulfide-hosted mineralization defeat simple gravity recovery.
▸Assay grade and actual recovery are not the same thing - and the gap can be enormous.
▸Cyanide works, but the safety, permitting, and liability burden is out of reach for most small operators.
▸Alternative recovery products exist, but separating genuine performance from marketing is nearly impossible without independent investigation.

That is the gap this report was written to address. Not with easy answers, but with careful observation, honest questions, and a field-tested look at one technology that keeps generating serious discussion among miners, refiners, and recovery operators.

The Investigation

This Is Not a Product Review. It Is a Field Report.

The Eco Goldex Field Guide is the result of an ongoing investigation into alternative precious metals recovery. It documents what was found, what remains uncertain, and what every serious operator needs to understand before committing to a recovery system.

▸Why Eco Goldex has continued generating serious discussion among miners, refiners, and recyclers when most alternative products disappear.
▸How resin recovery systems work and why understanding the recovery stage matters as much as the leaching chemistry.
▸The economics of recovery - what the math actually looks like for small operators.
▸What the investigation found, what remains preliminary, and what questions still need answers.
▸How to think about ore grade, recovery rate, and processing decisions before spending serious money.

“Too many publications attempt to present certainty where uncertainty still exists. Mining has never worked that way.”

- Eric Schultz, Author

Inside the Report

Ten Chapters. One Ongoing Investigation.

Version 1.0 documents where the investigation stands today. Future editions will incorporate additional testing, independent laboratory analysis, and updated findings.

Chapter 1

The Small Miner's Problem

▸Why assay grade and actual recovery are not the same thing
▸The free-milling dream vs. invisible gold reality
▸Why sulfides change the recovery conversation
▸How cyanide became dominant - and why small operators face a different reality
Chapter 2

What Is Eco Goldex?

▸Why this product has persisted when most alternatives disappear
▸What the company claims and how to evaluate those claims independently
▸Why resin recovery kept appearing in every serious discussion
▸What the investigation found in early-stage research
Chapters 3-4

Pregnant Solution and Resin Recovery

▸Understanding pregnant solution and why the recovery stage matters
▸Amberlite HPR4811 and the science of ion exchange resin
▸How loaded resin is processed through ashing and smelting
▸The complete recovery circuit from leach to gold button
Chapters 5-6

Bench Testing and Small-Scale Operations

▸Ashing resin and practical precious metal recovery
▸Small-scale bench testing methodology
▸What responsible testing looks like for independent operators
▸Safety considerations that cannot be skipped
Chapter 7

Economics and the Mathematics of Recovery

▸How to calculate whether a recovery system makes economic sense
▸The relationship between ore grade, recovery rate, and profit
▸What expectations are realistic for small-scale operations
▸Where operators often miscalculate and how to avoid it
Chapters 8-10

What We Know, Field Notes, and the Road Ahead

▸Honest accounting of what is verified vs. what remains preliminary
▸Field observations and practical lessons from the investigation
▸What questions Version 2.0 will attempt to answer
▸How readers can contribute to the ongoing investigation
This Report Is For You If...

You Want to Recover More of What You Find

▸You've found gold but suspect your recovery system isn't capturing all of it.
▸You're evaluating hard rock ores or concentrates and need to understand your recovery options.
▸You're interested in alternative recovery technologies but want honest investigation, not marketing.
▸You process e-waste, jewelry scraps, or other precious metals-bearing materials.
▸You want to understand the economics of recovery before committing to a system.
▸You believe in asking questions and following evidence rather than accepting claims at face value.
This Report Is Not For You If...

You Are Looking for Easy Answers

✕You want a guaranteed recovery system with no questions asked.
✕You have no interest in understanding chemistry, safety, or process economics.
✕You want someone to tell you what to do rather than how to think about it.
About the Author

Eric Schultz — Prospector, Consultant, and Field Investigator

Eric Schultz is a prospector, mining claim consultant, and founder of Schultz Resource Management PLLC and GoldClaimsForSale.com. His work focuses on helping individuals better understand mineral opportunities, mining claims, and precious metals recovery across the western United States.

Unlike many authors who arrive at mining through formal academic pathways, Eric's journey has been shaped by hands-on fieldwork, independent research, and years spent walking historic mining districts, studying claim maps, evaluating prospects, and examining the stories hidden within forgotten workings.

“Observe carefully. Test thoughtfully. Follow the evidence.”

Schultz Resource Management PLLC
▸Mining claim consulting across the western United States
▸Claim staking, location, county recording, and BLM filing
▸Buyer due diligence and field review services
▸Sampling, assay interpretation, and geological analysis
▸Mine operation consulting and permitting guidance
▸Author of Follow the Rust - Field Guide to Finding Gold
▸Ongoing field investigation into precious metals recovery
Choose Your Edition

How Do You Want to Read It?

Both editions include a one-year Follow the Rust Newsletter subscription on Substack - field dispatches, claim intelligence, prospecting strategy, and ongoing updates from the investigation. The book launches in the coming weeks. Subscribe on Substack now to receive teasers, excerpts, and launch notification. At $8/month on Substack alone, that is a $96 value included with either edition.

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▸Read on any device
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▸1 year Follow the Rust Newsletter included
▸Future edition updates
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The Investigation Continues.

The Gold Is There. The Question Is How Much You Are Actually Getting Out.

Version 1.0 documents where the investigation stands today. It is honest about what is verified, what remains preliminary, and what questions still need answers.

If you are serious about recovery, serious about understanding the economics, and willing to think critically rather than accept marketing at face value - this report was written for you.

Both editions include 1 year Follow the Rust Newsletter - a $96 value at $8/mo on Substack