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★ Mineral of the Week ★

Liroconite

Cu2Al(AsO4)(OH)4 · 4H2O — A rare copper aluminium arsenate valued for its sky-blue, lens-shaped monoclinic crystals.

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Sweet Home MineColorado, USA
BotallackEngland, UK
DalnegorskPrimorsky Krai, Russia
Mont Saint-HilaireQuÃĐbec, Canada
Bou Azzer mining districtDrÃĒa-Tafilalet Region, Morocco
Lavrion Mining DistrictAttica, Greece
Panasqueira MinesPanasqueira Mines, Portugal
Keweenaw CountyMichigan, USA
Ilímaussaq complexKujalleq, Greenland
LÃĨngban MineVÃĪrmland County, Sweden
Khibiny MassifMurmansk Oblast, Russia
Pala Mining DistrictCalifornia, USA
Silver Reef Mining DistrictUtah, USA
Broken Hill districtNew South Wales, Australia
Lengenbach QuarryValais, Switzerland
Mogok TownshipMandalay Region, Myanmar
Kolwezi mining districtLualaba, DR Congo
Tsumeb MineOshikoto Region, Namibia
Morenci MineArizona, USA
Sterling MineNew Jersey, USA
Bingham Canyon MineUtah, USA
Ojuela MineDurango, Mexico
BisbeeArizona, USA

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Mindat Fellows 2026

The Mindat Fellows program is a way for you to help ensure the long-term survival of mindat.org and to proudly show others your support. Fellows receive benefits such as advanced priority access to new features, priority support and special VIP events. These are the organizations and individuals who have supported mindat.org with major donations - the years show each Fellow's years of fellowship. If you would like to support mindat.org by becoming a Fellow, please click here.

Corporate & Organizational Supporters

6 Supporters
  • Fine Minerals International, Inc. (26)
  • Mineralogical Society of Southern California (25-26)
  • Canyonite (26)
  • D Joyce Minerals (26)
  • The Arkenstone Ltd (18-26)
  • International Center for Diffraction Data (24-25)

Individual Fellows

21 Fellows
  • Geoffrey Lynn & Eunice Yang (26)
  • Ted A. Hadley (23-24, 26)
  • Marcus Budil (26)
  • Demetrius Pohl (20-21, 25-26)
  • George & Terri Balogh (25-26)
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  • William Cordua (22-25)

All mindat.org Supporters 2025/2026

Every contribution matters. Our Supporters help fund the infrastructure, development and ongoing work required to keep Mindat free and available to everyone.

481 Supporters
Bill & Diana Dameron Bluegrass Gem and Mineral Club of Central Kentucky Demetrius Pohl Edna Gray Excalibur Mineral Corp. Fabian Wildfang Fine Minerals International, Inc. Frank Loman Frank Ruehlicke Geoffrey Lynn & Eunice Yang George & Terri Balogh George Frederick Huggins Graham Sutton IMO Laszlo Z. Valachi International Center for Diffraction Data J. Stephen Huebner Jack Hayward-Hughes James Finegan Jim McGlasson John A. Moore John C. Lucking John H. Kashuba John H. Kashuba, Jr. John Kashuba John Kashuba Keith Compton Marcus Budil Marcus J. Origlieri, Ph.D. Mariusz Oleszczuk Mark Kucera Matt Zukowski Melissa Huffman Michael F. Donnelly Michelle Schrader Mineralogical Society of Southern California Norman King Paul Huggins Paul Siegel PH, dedicated to JULIA ROSE HUGGINS ROBERT Jenkins Ruggy Holloway Rui Cao Steve Maslansky Steven P. Maslansky Storm Sears Sussex Mineral & Lapidary Society Ted A. Hadley The Arkenstone Ltd the Micromounters of New England in memory of Dr. Mike Swanson Thomas Gille Tony & Karen Nikischer Tony Nikischer Tony Potucek Warren-Faller Fund William Cordua William Hamel
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are ÂĐ OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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