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Zeolite mineral
- Gmelinite is a zeolite mineral that forms in hexagonal crystals. Its structure is composed of interconnected silica and alumina tetrahedra, creating a porous framework.
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Gmelinite is an uncommon mineral, and although it found in microcrystals in many zeolite deposits, large and well-formed crystals only come from a handful of occurrences. Important European localities include Vicenza Province, Italy at Nero Mountain in Montecchio, and at Fara Vicentino.
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Gmelinite-Na is one of the rarer zeolites but the most common member of the gmelinite series, gmelinite-Ca, gmelinite-K and gmelinite-Na. It is closely related to the very similar mineral chabazite.
Gmelinite, a unique zeolite mineral, forms in volcanic rocks and has diverse global distribution. Its properties make it valuable for scientific research, industrial applications, and as a sought-after collector's item. With its hexagonal crystal structure, gmelinite stands out among zeolites.
Aug 30, 2017 · A synthetic, fault-free gmelinite (GME) zeolite is prepared using a specific organic structure-directing agent (OSDA), cis-3,5-dimethylpiperidinium. The cis-isomers align in the main 12-membered ring (MR) channel of GME.
- Michiel Dusselier, Michiel Dusselier, Jong Hun Kang, Dan Xie, Mark Edward Davis
- 2017
gmelinite, hydrated sodium aluminosilicate mineral in the zeolite family [(Na 2,Ca)Al 2 Si 4 O 12 ·6H 2 O]. Its crystal structure and chemical composition are similar to those of chabazite ( q.v. ), with which it is commonly found.
- The Editors of Encyclopaedia Britannica
Jan 1, 2019 · Gmelinite is not a common zeolite and is usually found as a product of basalt alteration, associated with other Na-rich open-framework minerals, such as analcime and Na-chabazite.
Zeolite Group. Name: Gmelinite was named for the German chemist and mineralogist Christian Gottlob Gmelin (1792-1860). In 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K.