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Source page: http://commons.wikimedia.org/wiki/File:Datolite-Pyrite-266480.jpg


English: Datolite, Pyrite
Locality: Charcas, Municipio de Charcas, San Luis Potosí, Mexico (Locality at mindat.org)
Size: 13.9 x 10.1 x 7.2 cm.
Romero particularly prized these datolites, which before the discovery of (somewhat different styled) crystals from Dal’negorsk, were surely the world’s best of species. Even still today, they have amazing symmetry and geometry that are not often equaled. He had 3 in the collection. This is the largest of them, the only cabinet sized specimen. It is a complete mound of geometric, translucent, sea-foam-green crystals of datolite, measuring to about 2 inches across. For crystallography, these old datolites really are highly desirable, but so seldom seen. In excellent condition, and with a nice accent of pyrite. An elegant example of this species, from a locale that most folks simple have never seen one from. This specimen from the Dr Miguel Romero collection was on loan exhibition to the University of Arizona Museum for over a decade, until my purchase of this collection in 2008. It was on display in special cases at the museum.
Deutsch: Datolith, Pyrit
Fundort: Charcas, Municipio de Charcas, San Luis Potosí , Mexiko (Fundort bei mindat.org)
Größe: 13.9 x 10.1 x 7.2 cm.
Date before March 2010(2010-03)
Source http://www.mindat.org/photo-266480.html
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