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Mindat.org is the world's largest open database of minerals, rocks, meteorites and the localities they come from.Mindat.org is run by the not-for-profit Hudson Institute of Mineralogy.
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Recent Articles
Alluvial Agates of the Odra River (Opole Voivodeship, Poland): A Geological and Mineralogical Study of a Newly Recognized Alluvial Source of ChalcedonyJ.M.Kornaga - Yesterday
'Muschelkalk Agates' Fossil Agates from Opole area in Silesia (Poland)J.M.Kornaga - 3rd Nov 2025
Minerals Associated with PortugalRui Nunes - 28th Oct 2025
Agates - hidden beautyVítězslav Snášel - 25th Oct 2025
Munich Show 2025Jolyon Ralph - 24th Oct 2025- More ArticlesClick here to see more recent articles
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29th Oct - The ArkenstoneWeekly Auctions ending soon!
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