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Occurrence of Clinoptilolite and Mordenite in Tertiary Calc-Alkaline Pyroclastites from Sardinia (Italy)
Clinoptilolite Fluid/Rock Interaction Mordenite Opal-CT Tertiary Pyroclastic Flows
2011/12/7
Abstract: Clinoptilolite and mordenite occur as diagenetic products of medium-grained, moderately welded and poorly sorted pyroclastic flows belonging to the Tertiary calc-alkaline volcanism of Sardin...
The Genesis of a Mordenite Deposit by Hydrothermal Alteration of Pyroclastics on Polyegos Island, Greece
Clinoptilolite Greece Heulandite Hydrothermal Alteration Mordenite Polyegos Pyroclastics Rhyolite Zeolites
2011/12/22
Abstract: The vitric component of the silicic pyroclastic flows and surge deposits (Prassa ignimbrite unit), from the northwestern exposures of the pyroclastics formation of Polyegos Island, South Aeg...
K-Rich Mordenite from Late Miocene Rhyolitic Tuffs, Island of Samos, Greece
Hydrothermal alteration Mordenite Potassium Rhyolitic tuff Volcanic ash X-ray powder diffraction Zeolite
2011/12/31
Mordenite occurs in hydrothermally altered rhyolitic volcanic rocks at the margin of a Late Miocene lake basin on the island of Samos, Greece. The mordenite was identified by its X-ray powder diffract...
Hypothetical Structures of Magadiite and Sodium Octosilicate and Structural Relationships Between the Layered Alkali Metal Silicates and the Mordenite- and Pentasil-Group Zeolites
Alkali metal silicate Bikitaite Crystal structure Dachiardite Epistilbite Infrared spectroscopy Magadiite Mordenite Nuclear magnetic resonance
2012/1/9
Hypothetical model structures for magadiite and sodium octosilicate, based on the structure of the zeolite dachiardite, are proposed that consist of layers of 6-member rings of tetrahedra and blocks c...