File:Ammolita - Carlos Ramirez Serrano.jpg
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Español: La ammolita es una gema orgánica rara y valiosa que se encuentra principalmente en las laderas del este de las Montañas Rocosas de los Estados Unidos y Canadá. Está formada por las conchas fosilizadas de los ammonites, constituidos principalmente por aragonito, el mismo mineral del que están formados las perlas nacaradas. Es una de las tres gemas biogénicas, junto alámbar y la perla. En 1981, la ammolita adquirió el estatus de gema gracias a la Confederación Mundial de Joyería, el mismo año en el que empezó su minería comercial. En 2004 fue nombrada "gema oficial" de la provincia de Alberta.
Los ammonites que han dado lugar a la ammolita habitaron los mares internos subtropicales que bordeaban las Montañas Rocosas, zona conocida hoy como "Mar Interior Norteamericano". |
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| Source | http://blog.illustraciencia.cat/2015/04/ammolita-carlos-ramirez-serrano.html |
| Author | Carlos Ramirez Serrano |
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I·lustraciència by ACCC, as a collaboration with Amical Wikimedia, kindly provided this illustration liberated by its author.
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| current | 11:00, 11 December 2015 | | 1,094 × 846 (459 KB) | Illustraciencia (talk | contribs) | User created page with UploadWizard |
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