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News

  1. Q1 Gold Jewellery Demand Soft, Says WGC
  2. Jewellery Buying Groups Formed New Global Alliance
  3. Singapore to Host Jewellery & Gem World 2022
  4. ‘Wonder Woman’ Gal Gadot Premiered in Tiffany’s 2022 High Jewellery Collection
  5. Christie’s to Auction ‘The Light of Africa’ for $18M in June
  6. New Board of Directors were elected to Jewellery Exporters Association of Turkey
  7. Oroarezzo back with Première Competition
  8. ‘De Beers Blue’ auctions US$57.5M at Sotheby’s
  9. CTF launches Mother’s Day collection
  10. Jewelers of America Announces The 2022 CASE Award Winners
  11. De Beers: Diamond Businesses Staying Cautious About Business Expectations
  12. Synthetic Alexandrite Pioneer David Patterson Dies at 89
  13. 205 CARAT FANCY INTENSE YELLOW DIAMOND GENEVA MAGNIFICENT JEWELS | 11 MAY 2022
  14. Rebecca Foerster Appointed As President of Hearts On Fire
  15. US Steps Up Sanctions Against Alrosa
  16. PGI Study Findings: Consumers Have Different Interpretations of Sustainability
  17. Irving Wong Appointed as Pandora’s General Manager For China
  18. Rolex’s 6 New Watches Unveiled at Watches & Wonders Geneva
  19. Sixième Sens par Cartier High Jewellery: Heteractis Ring
  20. Will Russian Diamond Ban Help Foster Lab-Grown Diamond Business?
  21. Press Release: Ariana DeBose, Hunter Schafer and Zoey Deutch Shine in De Beers Jewellers at the Vani
  22. Press Release: Ariana DeBose, Hunter Schafer and Zoey Deutch Shine in De Beers Jewellers at the Vani
  23. JEWELLERY GENEVA Takes Place between 30 March and 3 April 2022
  24. Christie’s Presents 228 carat White Dimond
  25. Gold Bar Integrity Programme to be Implemented
  26. Press Release: BONHAMS ANNOUNCES ACQUISITION OF BRUUN RASMUSSEN AUCTIONEERS – DENMARK’S LEADING AUCT
  27. Early Spring Fashion for Natural Diamonds
  28. Jennifer Garner Shines in De Beers Jewellers at the Premiere in New York
  29. To celebrate its 15th anniversary, “Cartier Women’s Initiative Impact Report”
  30. American Gem Trade Association Announces Partnership with JCK Show Again
  31. Chow Tai Fook and Canada's Mountain Province Diamonds Sign Supply Agreement
  32. Registration Is Open for 2022 JCK Show
  33. Alrosa Caught Up in U.S. Sanctions
  34. Tawhid Abdullah Receives Lifetime Achievement Award
  35. The Largest Blue Diamond Appears at Sotheby’s Auction
  36. Price Rise for Nearly 90% Of Fancy Colour Last Year
  37. Dickson Yewn’s Collectibles Given for Sotheby’s Charity Auction
  38. De Beers Boosts Production
  39. Watches & Wonders Geneva To Be Held In Hybrid Format
  40. Jewellery, Gem & Technology Dubai to Debut February
  41. Hong Kong Losing its Dominance as the World's Largest Watch Market
  42. Gift Guide for CNY
  43. Press Release: Sotheby’s Announces New Appointments To Luxury Team In ASsia
  44. Georg Jensen Becomes a Certified Member of RJC
  45. 555.55-carat Black Dimond Unveiled at Sotheby’s Auction
  46. GIA Appoints Anna Martin as SVP for Institute, Industry Relations
  47. Alrosa Boosts Direct Sales of Fancy Diamonds to Investors
  48. CIBJO General Assembly postponed to March 17 and 18, 2022
  49. 7,525 Carat Emerald Discovered
  50. Karl Lagerfeld Jewellery Collections to Shine
  51. Diamonds Travel To The Space
  52. Vicenzaoro January postponed to March
  53. America’s Youngest Jeweller Starts Business via Instagram
  54. Concerns over conflict gold arise again
  55. The 1st International Gemstone & Diamond Trade Summit Wraps Up in Macao
  56. The Knot’s Study:Over 30% of Respondents Say Natural Diamond Unimportant
  57. Pantone’s 2022 Colour of the Year: Very Peri
  58. Phillips Jewellery Auctions Fetch over HK$181 Million
  59. The World’s First Pure Gold Castle of Magical Dreams by CHOW TAI FOOK
  60. Jewellery Sales Jumped 78% During the Thanksgiving Holiday
  61. Gem Auctions DMCC’s Debut Auction Successful
  62. Cartier’s Christmas Tree Lights Up the City with Love and Hope
  63. Rediscovering Lacloche in Hong Kong
  64. Blue diamonds to lead Christie’s HK autumn sale
  65. JMA show to stage next Thursday
  66. HK auction to help Cambodian kids
  67. Basel fair cancelled again
  68. HKDI show to continue in Dec
  69. Gemfields sells 7,500-carat emerald for good
  70. Sustainability is key to diamond purchases, a report says
  71. Christie’s Geneva jewellery sale fetches CHF53.7m
  72. Cibjo forms working group on fei cui standards
  73. Only Watch raises CHF30m for DMD research
Read More...


HIGHLIGHT

  1. US market unfolds changes and potential
  2. The queen of gems, the gem of queens
  3. Classics return

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  • Gold Nugget mined in Ghana
  • Necklace crafted in EcoGold which launched by Toby Pomeroy to promote environmentally sustainable and socially responsible jewellery
  • Gold mining in Ghana has caused environmental damage
  • Local miner in one of the field testing sites and GOLDROP
  • Sluice Goose Industries founder John Richmond and his invention GOLDROP

Device to remove mercury from gold mining

Gold is one of the most-used metals in jewellery making. Over the last half-century, more than 15 million artisanal and small-scale miners worldwide have relied on mercury usage to capture gold from soil and sediments efficiently, yet local miners and the environment as well as the rest of us pay the price. World Health Organization (WHO) pointed out that constant exposure to mercury can trigger neural, reproductive and immune system devastation. On top of that, gold mining as the second largest source of mercury pollution in the world, following coal combustion, has emanated toxic vapors and micro-particles that transported globally on winds and ocean currents.

Invited by the Ghana National Artisanal and Small-Scale Miners Association (GNASSM), non-profit organisation Mercury Free Mining (MFM) works hand in hand to test the GOLDROP gold separating processor with the University of Mines and Technology, which potentially provide artisanal miners with a mercury-free alternative to separate gold and eventually end the use of toxic mercury in artisanal gold mining.

GOLDROP is invented by American company Sluice Goose Industries founded by the gold hunting hobbyist John Richmond and has gained United States patents in the middle of 2018. The water-driven processor mainly contains a funnel and an elutriation tube. The machine raises water pressure and creates an upward current of swirl in the tube and relies on gravity to precipitate gold particles from dirt and other minerals. Gold, which is heavier sinks to the bottom of the kit’s bucket. Lighter particles float and move out of the system. The device can recover different heavy materials including gemstones and precious metals like stainless steel, etc. Richmond claimed the machine can process 50 pounds of paydirt in five minutes and around six feet of materials daily, while it merely requires a steady water supply and a pump that can generate 100 pounds pressure. According to some North American gold miners who often use mercury to extract gold from other heavy minerals, it is more efficient than traditional gold panning.

MFM executive direcctor Toby Pomeroy travelled to one of the world’s top 10 gold producers Ghana’s southern part, Ashanti for a 10-day field testing of the innovative equipment in the early January. Miners in three artisanal mining communities in the Ashanti region used the equipment daily as real-world applications. After the trip to Ghana, Pomeroy described the technology as low-cost, simple, portable and highly efficient. GNASSM organiser Anaji Baba said the artisanal and small-scale miners there picked up the skills of using GOLDROP almost immediately. They captured 95 percent of the Alluvial gold they processed the first day and locals who applied the tool on gold recovery were excited to replace their mercury-based practices. MFM has currently launched a fundraising campaign to help the organisation to meet the US$25,000 goal to complete rigorous testing and documentation in collaboration with the University of Mines and Technology to witness the beginning of the end of toxic mercury in gold mining.

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