This paper deals with the chemistry of 12 levyne-erionite intergrowths. The two zeolite species differ for both framework and extraframework cation contents being levyne constantly Si- and K-poorer and Ca-richer than overgrown erionite. The relative increase of K in the parent solution during the crystallization process is considered the main responsible for the growth of erionite instead of levyne. The dominance of Na among extraframework cations in both levyne and overgrown erionite crystals of three samples of sea-shore occurrence is justified with later cation exchange with sea-water.
This paper deals with the chemistry of 12 levyne-erionite intergrowths. The two zeolite species differ for both framework and extraframework cation contents being levyne constantly Si-and K-poorer and Ca-richer than overgrown erionite. The relative increase of K in the parent solution during the crystallization process is considered the main responsible for the growth of erionite instead of levyne. The dominance of Na among extraframework cations in both levyne and overgrown erionite crystals of three samples of sea-shore occurrence is justified with later cation exchange with sea-water.
Chemistry of levynes and epitaxially overgrown erionites / Passaglia, Elio; E., Marchi; Gualtieri, Alessandro. - In: NEUES JAHRBUCH FUR MINERALOGIE MONATSHEFTE. - ISSN 0028-3649. - 12:(1999), pp. 568-576.
Chemistry of levynes and epitaxially overgrown erionites
PASSAGLIA, Elio;GUALTIERI, Alessandro
1999
Abstract
This paper deals with the chemistry of 12 levyne-erionite intergrowths. The two zeolite species differ for both framework and extraframework cation contents being levyne constantly Si-and K-poorer and Ca-richer than overgrown erionite. The relative increase of K in the parent solution during the crystallization process is considered the main responsible for the growth of erionite instead of levyne. The dominance of Na among extraframework cations in both levyne and overgrown erionite crystals of three samples of sea-shore occurrence is justified with later cation exchange with sea-water.
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
