Cerro Madre e Hija, Monumento Natural Bosques Petrificados, Deseado Department, Santa Cruz, Argentina
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"Madre e Hija" (405 metres above sea level), with its two characteristic peaks, is the dominant elevation over the Valley of "Laguna Grande".
Main mineralization: Zeolite Group. Heulandite-Ca., appears in venules product of hydrothermal alteration of andesites of the poor under formation, associated with Stilbite and Analcime. It was determined by morphology and DRX.
Celadonite: it appears in veins of basic volcanic rocks. Associated with stilbite and heulandite and accompanied by phillipsite, mordenite, quartz, chalcedony, Opal, and calcite. It was determined by optical and XRD.
11 entries listed. 8 valid minerals.
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G. Aliotta, M. Garrido, C. Gómez y L. Luna (1996). Estudio de zeolitas de la zona de “Madre e Hija” (Santa Cruz). 3a Reunión de Mineralogía y Metalogenia. Instituto de Recursos Minerales, UNLP. Publicación 5: 9-16.