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Analcime : Na2[Al2Si4O12] · 2H2O | |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy Analcime crystal, 5 mm, with dominant cubic faces and small trapezohedrons. Old Specimen from the type location.Volker Betz Zeolite Collection. |
| © Volker Betz | Photo ID: 74367 View Count: 373 |
Analcime : Na2[Al2Si4O12] · 2H2O | |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy Field of view ca. 25 mm. Very transparent and for its shape typical Analcime crystal from the type location. The specimen also shows small Calcite and Aragonite crystals in other small cavities. Zeolite Collection of Volker Betz. |
| © Volker Betz | Photo ID: 157044 View Count: 366 |
Analcime : Na2[Al2Si4O12] · 2H2O | |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy Absolutely transparent and well shaped Analcime crystal in a Basalt geode with others smaller crystals of the same mineral. Biggest crystal size is around 1 cm. This kind of transparence on Analcime crystals is typical and can be found only in the Lachea Island, the largest of Cyclopean Islands. Photo and collection: Gaetano Sicurella |
| © Gaetano Sicurella | Photo ID: 82152 View Count: 260 |
Analcime : Na2[Al2Si4O12] · 2H2O | |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy Transparent crystal of Analcime found on Lachea Island (the biggest of the Cyclopean Islands). The size on the crystal is 1 cm. Photographed by and from the collection of Gaetano Sicurella. |
| © Gaetano Sicurella | Photo ID: 76859 View Count: 226 |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy Two specimens of 65.01 and 52.05 mm of Analcime from the collection of the Stockh.Hogsk. Min. Institute. Collection & photo M.Chinellato |
| © Chinellato Matteo | Photo ID: 217851 View Count: 71 |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy 4.5 x 4.5 x 3.5 cm. This is a fine analcime from the historic Type Locality - Mt. Etna, Sicily. It is uncommon on the market and this particular specimen features two distinctly different analcime crystals in the drusy quartz-lined vug in basalt. The sharp, lustrous, yellow crystal is 1.2 cm and the crystal on the other side of the vug is a ... |
| © Rob Lavinsky | Photo ID: 250271 View Count: 17 |
Thomsonite-Ca : NaCa2[Al5Si5O20] · 6H2O | |
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Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy Field of view ca. 14 mm. 19th century specimen with nice blocky crystals. Ex collection of Dr. G Garbari, Trento. Zeolite collection of Volker Betz |
| © Volker Betz | Photo ID: 160803 View Count: 141 |
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