Sourcing

Mercury-Free Mining Might Have Found a Solution

SourcingJan 13, 2020

Mercury-Free Mining Might Have Found a Solution

Founder Toby Pomeroy is in Ghana right now testing a technology called Goldrop with artisanal miners.

20200113_Mercury_Free_Mining_header-NEW.jpg
Artisanal gold miners at work in Ivory Coast (Photo credit: Reuters, licensed to Mercury-Free Mining). The founder of Mercury-Free Mining, Toby Pomeroy, is in Ghana to witness testing of a solution to the use of mercury in small-scale gold mining worldwide.

Corvallis, Oregon—The founder of the Mercury-Free Mining initiative is in West Africa to test a separation process that could fulfill his organization’s ultimate goal—to eliminate the need to use mercury in artisanal gold mining.

Oregon-based jewelry designer Toby Pomeroy, founder of MFM, left the United States for Ghana on Jan. 8 to begin 10 days of field-testing a technology called Goldrop.

Invented by John Richmond of Sluice Goose Industries and patented in the U.S. in 2018, the technology uses the elutriation process to separate gold, including all heavy elements and minerals, from mineral concentrate and tailings, Pomeroy explained to National Jeweler via email from Ghana.

Elutriation is a process of precipitating out particles by means of an upward current of fluid, often water or air.

The testing will take place in three artisanal mining communities in Ashanti, a region of in southern Ghana known for its gold production.

In a video, Pomeroy described the technology as low-cost, simple, portable and highly efficient.

RELATED CONTENT: What is the Mercury-Free Mining Challenge?
Launched by Pomeroy in 2017, the initial goal of Mercury-Free Mining (originally called the Mercury-Free Mining Challenge) was to get the jewelry industry to put up a $1 million prize for the creation of a safe, scalable and effective alternative to the use of mercury in mining by artisanal gold miners.

Artisanal miners produce 20 percent of the world’s annual gold supply, and almost all of them use the element to separate the gold they find from other materials. They burn off the mercury by heating it, sending toxic particles into the air that are harmful to people and the environment.

In a 2018 interview with National Jeweler, Pomeroy compared his challenge to the Ansari X Prize and the Wendy Schmidt Oil Cleanup X Challenge, which were launched to innovate in the fields of space travel and oil spill cleanups, respectively.

Now, Mercury-Free Mining has not actually raised the $1 million at this point.

But Pomeroy said when Richmond invited the organization to oversee demonstrations and testing of Goldrop requested by the Ghana National Artisanal Small-Scale Miners Association, he felt he could not turn down the invitation.

“His invitation was right on the heels of our realization that MFM needed to help raise awareness of the problem and to, ideally, provide the jewelry industry and the world with an on-the-ground, real-life connection to the people who struggle to
make a living mining for gold and whose only means of being marginally efficient is by using mercury,” he said.

“John’s invitation came at a perfect moment for MFM to help highlight this critical issue and to educate people on the need for a mercury alternative to be discovered.”

Pomeroy said he wants the jewelry industry to directly participate in and support the discovery of an alternative to mercury in artisanal mining.

“We are committed that jewelers can have an inspiring answer to the question, ‘Where is your gold from, and was it responsibly mined?’”

Mercury-Free Mining has launched a fundraising campaign to help raise $25,000 to complete the testing and documentation in Ghana.


Donations can be made through the donations page on the MFM website.

Pomeroy is sharing results from the Goldrop test run on the MFM website’s blog and on social media, including its Facebook and Instagram pages.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

The Retail Smiths partner and National Jeweler columnist Peter Smith
ColumnistsApr 30, 2026
Peter Smith: A Sleazy Salesman and the Case for Regret Avoidance

Smith uses a comment he overheard in the grocery store to remind retailers that their job is to inspire buying behavior, not just sell.

Claire’s new summer campaign
MajorsApr 30, 2026
Claire’s New Summer Campaign Is a Sensory Wonderland for Gen Alpha

“A Girl SMR at Claire’s” celebrates girlhood through the five senses with stacked jewelry, slime toys, scented accessories, and ASMR.

Cartier London Crash Watch
AuctionsApr 30, 2026
Vintage Cartier Watch Crashes Through Records, Selling for $2M

Believed to be one of three made in 1987, the Cartier London Crash was hot at the “Shapes of Cartier” sale at Sotheby’s Hong Kong.

Antique Jewelry & Watch Show
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las Vegas

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Police cars
CrimeApr 30, 2026
Masked Group Uses Hammers, Pepper Spray in Texas Jewelry Store Robbery

Officials are looking for a group that robbed Marc Robinson Jewelers at an outlet mall in Round Rock, Texas, in broad daylight on April 21.

Weekly QuizApr 30, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
OAR26_NJ_bulletin_1872x1052_01.jpg
Supplier BulletinApr 30, 2026
OROAREZZO 2026: The B2B Event for Italian Excellence in Goldsmith, Jewelry and Silver Manufacturing

Sponsored by OROAREZZO International Jewelry Exhibition

Tiffany & Co. Mother’s Day email opt out
MajorsApr 29, 2026
The Thought Process Behind the Mother's Day Email Opt-Out

Some retailers are taking a nuanced approach to marketing what can be a difficult holiday for many.

lvajws image 1.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Dick Abbott
IndependentsApr 29, 2026
Dick Abbott to Retire From The Edge

The Edge has announced its new CEO, as well as a new partnership with an investment firm focused on founder-led software businesses.

John Wayne Signet Ring
AuctionsApr 29, 2026
This'll Be the Day You Own John Wayne's Ring

A signet ring belonging to the Western film star of Hollywood’s Golden Age will be up for auction at Elmwood’s next month.

Stock image of money
Policies & IssuesApr 28, 2026
Tariff Refunds: How to File, What to Expect

Importers can submit claims now to receive money back for the IEEPA tariffs they’ve paid, with refunds expected to take up to 90 days.

Gregory's Jewelers storefront
IndependentsApr 28, 2026
This North Carolina Jeweler Is Passing the Torch

The owners of Gregory Jewelers in Morganton, North Carolina, are heading into retirement.

Natural Diamond Council Chief Marketing Officer Susie Dewey
SourcingApr 28, 2026
NDC Hires Tapestry Exec to Head Global Marketing

Susie Dewey joins the Natural Diamond Council as its new chief marketing officer.

The Ocean Dream diamond
AuctionsApr 27, 2026
12 Years Later, the ‘Ocean Dream’ Diamond Resurfaces at Christie’s

The largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.

Smart Age Solutions CEO and National Jeweler columnist Emmanuel Raheb
ColumnistsApr 27, 2026
Stop Treating Mother’s Day Like an Afterthought

Emmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.

Longnecker Jewelry storefront
IndependentsApr 27, 2026
Longnecker Jewelry Celebrates 30 Years

In honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.

Jeff Corey
MajorsApr 27, 2026
JBT Re-Elects Jeff Corey as Board Chair

The trade organization, which held its annual elections earlier this year, also added five new board members.

Fourteen August Irene mom ring
SurveysApr 24, 2026
Mother’s Day 2026 Jewelry Spending to Top $7B, NRF Says

NRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.

TwentyFour Vault Locket
TechnologyApr 24, 2026
TwentyFour’s Digital-Age Locket Is a Virtual Vault

The “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.

Hamptons Jewelry Show exhibitors Maison Mèrenor, Jochen Leën, Studio Javo
Events & AwardsApr 24, 2026
Hamptons Jewelry Show to Return in July

The open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.

Photos from Day’s Jewelers 2025 Mother’s Day campaign
IndependentsApr 23, 2026
Meet the Real Moms of Day’s Jewelers

The jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.

National Jeweler - Supplier Bulletin - April 2026 - JMSS Graphic.jpg
Supplier BulletinApr 23, 2026
JM® Shipping Solution: Smarter Shipping for High-Value Goods

Sponsored by Jewelers Mutual

Woman wearing Charles & Colvard lab grown diamond jewelry
Lab-GrownApr 23, 2026
Charles & Colvard May Sell Assets for $1.5M

The proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.

John Jacob Astor IV’s Titanic pocket watch and a gold pencil case
AuctionsApr 23, 2026
John Jacob Astor IV’s Titanic Pocket Watch Fetches $1M

The Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.

Adam Neeley Dali Garden Collection Eyris Ring
CollectionsApr 23, 2026
Adam Neeley’s High Jewelry Collection Steps Into Salvador Dalí’s Garden

The “Dalí’s Garden” collection was inspired by a surreal dream Neeley had after cooking a recipe from Salvador Dalí’s 1973 cookbook.

Natalie Feanny
IndependentsApr 23, 2026
Windsor Jewelers Names New Buying Director

Natalie Feanny has been appointed to the role.

Stock image of a gavel and books
CrimeApr 22, 2026
New Mexico Couple Pleads Guilty to Selling Fake Native American Jewelry

The pair falsely claimed their jewelry was made by Navajo artists, but it was imported from Vietnam.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy