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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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On This Day (17th Oct 1755): Katla eruption
On this day in 1755, Katla in Iceland erupted, creating a massive jökullhlaup (glacial outburst flood).Recent Articles
The Minerals of Monte de São BartolomeuRui Nunes - Today
The Strike at the São Domingos Mine in 1932Rui Nunes - Yesterday
Goethite from Cercal MinesRui Nunes - Yesterday
Aljustrel MinesRui Nunes - Yesterday
São Domingos Mine – A Brief Telling of a Long TaleRui Nunes - Yesterday
- More ArticlesClick here to see more recent articles
Market News
14th Oct - D. Joyce MineralsThis Month: Namibia and Africa
9th Oct - mineralman.comAuctions ending TONIGHT!
9th Oct - BluegemsBluegems update.
8th Oct - The ArkenstoneSmale & more auctions last day
6th Oct - The ArkenstoneNew Fine Cut Gemstones Update
- More Dealer NewsClick here to view all recent dealer news