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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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Ore Minerals
On This Day (6th Jun 1912): Novorupta eruption begins
On this day in 1912, the Novorupta eruption, largest volcanic eruption of the 20th Century, began. The eruption lasted three days, creating the Katmai caldera and the Valley of Ten Thousand Smokes.Recent Articles
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Exploring the Mount St Helens Mining District in Washington StateAidan Cerenzie - 31st May 2026
Ardglen Quarry, Ardglen, New South WalesKeith Compton - 17th Nov 2017- More ArticlesClick here to see more recent articles
Market News
28th May - D. Joyce MineralsGrenville, Quebec, NFLD added
15th Apr - D. Joyce MineralsMineralogical books added
9th Apr - The ArkenstoneEx Smale Auctions ending soon!
26th Mar - mineralman.comAuctions ending TONIGHT!21st Mar - D. Joyce MineralsNew private col. consignments
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