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1. en.wikipedia.org · wiki · GmeliniteGmelinite - Wikipedia

   en.wikipedia.org · wiki · Gmelinite

   

   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 .

2. www.minerals.net · mineral · gmeliniteThe Mineral gmelinite - The Mineral and Gemstone Kingdom

   www.minerals.net · mineral · gmelinite

   

   Calcium-dominating Gmelinite is called Gmelinite-Ca, and is the most prevalent form of this series. Sodium-dominating Gmelinite, defined as Gmelinite-Na, and potassium-dominating Gmelinite, defined as Gmelinite-K, are both rare.

3. www.mindat.org · min-6971Gmelinite-Ca: Mineral information, data and localities.

   www.mindat.org · min-6971

   

   Formula: Ca2(Si8Al4O24] · 11H2O. Colour: Colorless, white, pink. Lustre: Vitreous. Hardness: 4½. Specific Gravity: 2.11. Crystal System: Hexagonal. Member of: Gmelinite Subgroup > Zeolite Group. Name:

4. webmineral.com · data · Gmelinite-CaGmelinite-Ca Mineral Data

   webmineral.com · data · Gmelinite-Ca

   

   Gmelinite-Ca. Comments: Tanslucent, salmon-colored gmelinite-Ca crystals. Location: Sarbaiskoe deposit (Sarbai; Sarbay Mine), Qostaney Oblysy (Kostanai [Kustany] Oblast'), Kazakhstan. Scale: Specimen Size 7.9 x 5.9 x 5.1 cm. © Rob Lavinsky. Gmelinite-Ca Crystallography. Axial Ratios: a:c = 1:0.72202.

5. www.mindat.org · min-1714Gmelinite Subgroup: Mineral information, data and localities.

   www.mindat.org · min-1714

   

   In 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K. Gmelinite was originally described from Montecchio Maggiore, Vicenza Province, Veneto, Italy and Little Deerpark Quarry, Glenarm, Co. Antrim, Northern Ireland, UK.

6. iza-online.org · natural · DatasheetsIZA Commission on Natural Zeolites

   iza-online.org · natural · Datasheets

   

   Between like pairs of double 6-membered rings is a gmelinite cage (GME). Six columns of double 6-membered rings and gmelinite cages parallel to the c-axis surround a 12-member ring channel (aperture 7.0 Å). Analyses of T-O bond lengths show that there is no (Si,Al) order in the 6-rings.

7. People also ask

   Where did gmelinite come from?

   • Gmelinite was named for the German chemist and mineralogist Christian Gottlob Gmelin (1792-1860). Gmelinite was originally described from Montecchio Maggiore, Vicenza Province, Veneto, Italy and Little Deerpark Quarry, Glenarm, Co. Antrim, Northern Ireland, UK. Data courtesy of the American Mineralogist Crystal Structure Database.

   Gmelinite: Mineral information, data and localities. - Mindat.org

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   Where is gmelinite typically found?

   • Gmelinite is rarely found in altered cavities in metamorphic rock such as hornfels and gneiss. It is a collectors mineral, especially for zeolite collectors, and is often found in this form: a variety of gmelinite with thick, hexagonally-shaped crystals in diapyramidal form and flattened terminations.

   Gmelinite: The zeolite mineral gmelinite information and pictures

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   Is gmelinite considered a single mineral species?

   • Since its original classification, gmelinite was considered a single mineral species with a variable element composition. However, in 1997, the Zeolite Subcommittee of the IMA divided this mineral into individual sub-species, thereby regarding it as a series of three members.

   Gmelinite: The zeolite mineral gmelinite information and pictures

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   Does gmelinite have a compositional variation?

   • Minerals of the gmelinite series exhibit a limited range of compositional variation, both in the T Si content of the framework and in non-framework cations.

   IZA Commission on Natural Zeolites

   iza-online.org/natural/Datasheets/Gmelinite/gmelinite.htm

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   Is gmelinite soluble in HCl?

   • Soluble in cold 10% HCl. Piezoelectric. Barely detectable radioactivity. As with all zeolites, water is released on heating, and almost all has been expelled by 400 °C. Gmelinite-Na is one of the rarer zeolites but the most common member of the gmelinite series, gmelinite-Ca, gmelinite-K and gmelinite-Na.

   Gmelinite - Wikipedia

   en.wikipedia.org/wiki/Gmelinite

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   Is gmelinite a zeolite?

   • It occurs both as pure gmelinite-Na and interlayered with chabazite in water-quenched basalts in Western Tasmania. Associated minerals include other zeolites, especially chabazite, quartz, aragonite and calcite .

   Gmelinite - Wikipedia

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8. handbookofmineralogy.org · pdfs · Gmelinite-CaGmelinite-Ca Ca (Si Al )O ·11H O - handbookofmineralogy.org

   handbookofmineralogy.org · pdfs · Gmelinite-Ca

   

   Gmelinite-Ca Ca2(Si8Al4)O24·11H2O Crystal Data: Hexagonal. Point Group: 6/m 2/m 2/m. [As euhedral crystals, pyramidal, tabular, or rhombohedral, striated || (00*1) or less commonly, || [00*1], to 4 cm. Rarely in radiating aggregates or granular.