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Natural Zeolites - Morphology of Thomsonite-Ca
A Collectors Perspective
Under Construction
The Zeolite collection of Volker Betz, Taunusstein, Germany
| Thomsonite-Ca from Scotland | |
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| Thomsonite -Ca, Loanhead Quarry,Beith, Strathclyde, Scotland. 65x30 mm | Thomsonite-Ca, Old Kilpatrick, Strathclyde (Dunbartonshire), Scotland, UK. 70x40 mm |
| Thomsonite-Ca from the Faroes | |
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 Top: Different Thomsonite-Ca hemispheres in one cavity. Apperently two generations from Skipagjogv, Funningsfjørđur, Eysturoy. Fiels of view 20 mm. |
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| Top: Tabular Thomsonite-Ca as hemispheres with Heulandite and Seladonite from Lambareiði, Eystoroy. Specimen size is 17x12 cm. | Below: |
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| Top: Compact sphere of Thomsonite, on surface with bladed crystals and oriented Mesolite from Nesvik, Stremoy. 4x2,5 cm. | |
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| Thomsonite-Ca Hemispheres with Phillipsite. Uppi a Dal, Kunoy, Kunoy. Field of view 30 mm. | Hemispherical Thomsonite-Ca. lining a cavity of 7 cm. Uppi a Dal, Kunoy, Kunoy. |
| Thomsonite-Ca from the Vesuv and Isole dei Ciclopi | |
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| Thomsonite-Ca from Iceland | |
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 Transparent sphere of Thomsonite-Ca (left) and white sphere of Gismondine (right) from Skagafell, Reydarfjördur, Iceland. |
| Fan shaped aggregates of Thomsonite-Ca with Analcime and Mesolite from Bulandsdalur, Berufjördur, Iceland. Field of view 10 mm. |
Field of view 11 mm. |
| Thomsonite-Ca from Arensberg, Eifel, Germany | |
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| Thomsonite-Ca from Hammerunterwiesenthal, Erzgebirge, Germany | |
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| Large 11x12 cm specimen with transparent Thomsonite covering Natrolite. The zeolite layer is 20 mm thick. | |
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| Natrolite-Crystal (center) with epitaxial overgrowth of Thomsonite-Ca. Field of view 1.5 mm. | |
| Thomsonite-Ca from Vogelsberg, Hessen, Deutschland | |
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| Thomsonite from Gaulsberg, Ortenberg, Vogelsberg, Hessen. Field of view 5 mm. | |
| Thomsonite from Roßberg, Roßdorf bei Darmstadt, Hessen, Deutschland | |
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| Thomsonite-Ca from Höwenegg, Hegau,Germany | |
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Left: Blocky Thomsonite crystals twinned onm (110) from Höwenegg, Hegau, Germany. Field of view 4 mm. |
| Thomsonite-Ca from Oregon, USA | |
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| Thomsonite-Ca from Colorado | |
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| "Thomsonite" from Thomsonite Beach, Grand Marais, Cook Co., Minnesota, USA | |
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| Polished nodules of "Thomsonite" from Thomsonite Beach, Grand Marais. Field of view 6 cm. | |
| Thomsonite-Ca from Punta del Aguila, Playa Blanca, Lanzarote, Canary Islands | |
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| Top:
Aggregates of tabular crystals of Thomsonite with
Mesolite/Natrolite (oriented intergrowths), Chabazite-Na and dark brown
Todorokite. Field of view 22 mm. |
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| Thomsonite-Ca, Chabazite and Analcime .Field of view 18 mm. | |
| Thomsonite-Ca from La Gomera, Canary Islands | |
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Fan shaped aggregtes of tabular Thomsonite-Ca from
Playa de Hermigua. Field of view 3 mm. Center cystal with (010) and (001) faces.
Left: Combined group of tabular Thomsonite-Ca
from Playa |
 de Hermigua. Field of view 7 mm. |
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Fan shaped aggregtes of tabular Thomsonite-Ca with Analcime from
Playa de Hermigua. Field of view 5 mm. One cystal with (010) face.
Left: Combined group of tabular Thomsonite-Ca and oriented Mesolite
from Playa de Hermigua. Field of view 3 mm. |
| Thomsonite-Ca from Australia | |
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| Thomsonite-Ca from New Zealand | |
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| Thomsonite-Ca from | |
© 2010 by Volker Betz , all rights reserved