“A Place for Collectors, by Collectors.”

Show dates: Tuscon 2026

Mineral Nexus is the creation of Jim Walker and Mary Fong/Walker, as a place for collectors and by collectors. With the demise of Tucson City Center, there is no longer a place in Tucson where collectors can get together, look at minerals, swap stories, and just enjoy the hobby without the spectre of high-pressure salesmanship.

We also understand that Tucson is a big commitment and not everyone can spend 3 weeks manning a show booth (nor do they have any desire to do so). Mineral Nexus is designed so that you can put out your minerals on display, walk around enjoy Tucson yourself, while the team sells them. We are only inviting those folks that we know and trust. Call it a cooperative of friends and family if you will. So, with that in mind, we welcome you to join us at Mineral Nexus.

Featured Collections

  • Arizona Natural Science (William Besse)

  • Big Apatite Cafe (Melissa Jones)

  • Colleen Bickman Collection

  • Dudley Blauwet Collection

  • Fisher & Kurecska Collection

  • Fong & Walker Collection
    (IKON Mining & Exploration)

  • Ann Frazier (Frazier’s Minerals & Books)

  • Lauren Megaw Collection

  • Mark Hay Collection

  • Headframe Minerals (Don Boushelle)

  • Malmquist Family Collection

  • Peter Megaw Minerals

  • Mindat.org Books

  • Natural Selection Crystals (Jordan & CC)

  • Tarun Adlakha Collection (Time Machine)

  • Tony Potucek Collection

  • Jolyon Ralph Collection

  • Rio Grande Exploration (Mike Sanders)

  • Rose Family Collection (Al, Mary & Erik)

  • Scovil Photography

  • Chris Stefano Collection

  • Jacob Hughes

  • and others to be announced …

We’d love to work with you.