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

Claire’s storefront
MajorsAug 06, 2025
Claire’s Files for Chapter 11 Bankruptcy Again

The jewelry and accessories retailer said its stores will remain open during the proceedings.

Smith & Son Jewelers storefront Springfield Massachusetts
IndependentsAug 06, 2025
Smith & Son Jewelers to Close 107-Year-Old Location

Its Springfield, Massachusetts, store is set to close as owner Andrew Smith heads into retirement.

Zahn-Z Beluga Spout Grey Spinel Ring and Beluga Spout Mandarin Garnet Ring
CollectionsAug 06, 2025
Zahn-Z Swims With Whales in ‘Beluga’ Collection

Designer Hiba Husayni looked to the whale’s melon shaped-head, blowhole, and fluke for her new chunky gold offerings.

rio-article photo-diamond.jpg
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine Jewelry

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

Paola De Luca presenting Trendbook 2026+ at Vicenzaoro
TrendsAug 06, 2025
Paola De Luca to Release Trendbook 2027+

She will present the 23rd edition of the trend forecasting book at Vicenzaoro on Sept. 7.

Weekly QuizJul 31, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Omar Roy mugshot
CrimeAug 05, 2025
Report: Suspect Arrested in 1992 Murder of Miami Jeweler

Omar Roy, 72, was arrested in connection with the murder of jeweler Dionisio Carlos Valladares.

Mignon Faget Beyond Katrina Pendant and Beyond Katrina Pin
CollectionsAug 05, 2025
Mignon Faget Commemorates 20th Anniversary of Hurricane Katrina

The New Orleans-based brand’s “Beyond Katrina” jewels honor the communities affected by the storm.

an instructor and a student in a bench jewelry classroom
Brought to you by
Investing in the Next Generation of Bench Jewelers

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

National Jeweler columnist Lilian Raji
ColumnistsAug 05, 2025
The PR Adviser: Affiliate Marketing Is the Cost of Coverage

Lilian Raji explains why joining an affiliate network is essential for brands seeking placements in U.S. consumer publications.

Jewelers of America Logo
Events & AwardsAug 05, 2025
JA Announces Seymour & Evelyn Holtzman Bench Scholarship Winners

The organization has awarded a total of $42,000 through its scholarship programs this year.

2026 Gem Awards logo
Events & AwardsAug 04, 2025
Gem Awards, David Yurman Introduce $50K Grant for Emerging Designers

The winner of the inaugural David Yurman Gem Awards Grant will be announced live at the 2026 Gem Awards gala.

Marlo Laz peridot and diamond Alexandra earrings
TrendsAug 04, 2025
Amanda’s Style File: August’s Bright Baubles

As summer winds down, celebrate the sunny disposition of the month’s birthstones: peridot and spinel.

Surveillance image of Watch King robbery suspect
CrimeAug 04, 2025
‘The Watch King’ Assaulted, Robbed in Queens

Moshe Haimoff, a social media personality and 47th Street retailer, was robbed of $559,000 worth of jewelry by men in construction outfits.

Xavier Dibbrell
MajorsAug 04, 2025
Borsheims Welcomes New Assistant Facilities Manager

Xavier Dibbrell brings more than a decade of experience to the role.

Signet Jewelers logo
MajorsAug 01, 2025
Helzberg President Julie Yoakum Moves Over to Signet Jewelers

The addition of Yoakum, who will lead Kay and Peoples, was one of three executive appointments Signet announced Thursday.

Mike Alexander
MajorsAug 01, 2025
Jewelers Mutual Names Mike Alexander as President

The insurance company’s previous president and CEO, Scott Murphy, has split his role and will continue as CEO.

Hernsdorf Tears of Aphrodite Necklace
CollectionsAug 01, 2025
Piece of the Week: Hernsdorf’s ‘Tears of Aphrodite’ Necklace

The necklace uses spinel drops to immortalize the moment Aphrodite’s tears mixed with her lover Adonis’ blood after he was fatally wounded.

Lindsey Scoggins Studio convertible flower earrings
Events & AwardsJul 31, 2025
These Are the 2025 CASE Award Winners

Jewelers of America’s 35th annual design contest recognized creativity, artistry, style, and excellence.

Matthew Tratner, new president of Continental Buying Group
IndependentsJul 31, 2025
Matthew Tratner Takes Over as CBG President

Tratner succeeds Andie Weinman, who will begin stepping back from the buying group’s day-to-day operations.

Stock image of rough diamonds from the Kimberley mine
Policies & IssuesJul 30, 2025
Tariff on India Will Be 25%, Trump Says

The president made the announcement via Truth Social Wednesday, adding that India also will face a penalty for its dealings with Russia.

Pomellato Mini London blue topaz and diamond bracelet
FinancialsJul 30, 2025
Kering's Jewelry Brands Resilient As H1 Sales Slide 16%

The luxury titan’s star brand Gucci continued to struggle amid a "tough" environment.

Zadok Rolex Austin
WatchesJul 30, 2025
Peek Inside Zadok Jewelers’ New Rolex Showroom in Austin

Its opening marks the completion of the retailer’s new 11,000-square-foot store in the Texas capital.

Crowd of people in a shopping mall
SurveysJul 30, 2025
Consumer Confidence Ticks Up in July

Respondents shared concerns about tariffs and commentary on the “Big Beautiful Bill.”

Making a Killing in Diamonds by Rob Bates
SourcingJul 30, 2025
Rob Bates to Release Latest Book in His ‘Diamond District Mystery’ Series

“Making a Killing in Diamonds” tells the story of Mimi Rosen, the disappearance of a scientist, and the murder of lab-grown diamond CEO.

Tacori bezel-set diamond bands
EditorsJul 29, 2025
Out & About: Visiting Tacori’s Design Studio in LA

Senior Editor Lenore Fedow learned a lot when she took a behind-the-scenes factory tour with the jewelry brand earlier this year.

Mighty Fierce Audacious Necklace, Sandy Rubin Aziza Necklace, Koulianos Designs Illuminations Shield Pendant
Events & AwardsJul 29, 2025
Melee The Show Welcomes 15 New Designers

The first-time exhibitors, set to debut at the New York City show, share a devotion to craftsmanship, storytelling, and material integrity.

Auctim emerald auction
SourcingJul 29, 2025
Auctim to Offer 7.3M+ Carats of Rough Emeralds

The online auction house’s September sale will feature rough Brazilian emeralds of various qualities.

×

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