| Locality type: | Quarry |
| Classification |
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| Species: | Heulandite-Ca |
| Formula: | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Colour: | often greenish (coloured by chlorite inclusions). |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Calcite | ⓘ1 photo of Heulandite-Ca associated with Calcite at this locality. |
| Data |
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| Mineral Data: | Click here to view Heulandite-Ca data |
| Locality Data: | Click here to view Gneiss quarries, Arvigo, Calanca, Moesa Region, Grisons, Switzerland |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 549694 |
| Long-form Identifier: | 1:3:549694:5 |
| GUID (UUID V4): | 58622cdb-5ac4-47f8-99d7-488db32b1e3e |
| Nearest other occurrences of Heulandite-Ca |
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| 29.1km (18.1 miles) | ⓘSan Giorgio, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 31.6km (19.6 miles) | ⓘPiana Valley, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 34.3km (21.3 miles) | ⓘAverta Valley (Northern Glacial Cirque), Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 34.5km (21.4 miles) | ⓘGneiss quarry, Promontogno, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| 35.7km (22.2 miles) | ⓘPunta Trubinasca, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 49.2km (30.6 miles) | ⓘBarcuns, Trun, Surselva Region, Grisons, Switzerland |
| 51.0km (31.7 miles) | ⓘDruntobel (Drun Tobel; Drun Sedrun; Krüzli valley; Kreuzli pass; Ruinas Plaunas), Sedrun, Tujetsch, Surselva Region, Grisons, Switzerland |
| 53.7km (33.4 miles) | ⓘCaschlè, Val Strem, Tujetsch, Surselva Region, Grisons, Switzerland |
| 54.3km (33.7 miles) | ⓘVal Giuv, Tujetsch, Surselva Region, Grisons, Switzerland |
| 54.6km (33.9 miles) | ⓘPiz Nair, Val Milà, Tujetsch, Surselva Region, Grisons, Switzerland |
| References |
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Armbruster, Th., Stalder, H.A., Gnoss, E., Hofmann, B., and Herwegh, M. (2000) Epitaxy of hedenbergite whiskers on babingtonite in Alpine fissures at Arvigo, Val Calanca, Grisons, Switzerland. Schweizerische Mineralogische und Petrografische Mitteilungen, 80(3), 285-290 |
| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | crystals are found filling seams in schist and gneiss. Many apophyllite-(KF) specimens have been recovered...long in the pegmatites that cut the schist and gneiss. The locality at 190th Street and Amsterdam Avenue...specimen will be located. Calcioancylite-(Ce),(Ce,Ca,Sr)CO3(OH,H2O): See description under ancylite-(Ce)...where both minerals coated fractured plates of gneiss. Many of these specimens exceed 50 cm across. A...Chabazite-Ca, Ca2(Al4Si8O24)•13H2O; Chabazite-K, K2Na Ca0.5(Al4Si8O24)•11.5H2O: Both chabazite-Ca and chabaziteK |  | | Book | | Tetrahedrite and realgar from the Binn Valley, Switzerland Pages 70-71: Fluorite crystals from the People's...bertrandite, brookite, enargite, epidote, ferberite, heulandite, hiibnerite, ferrocolumbite/manganocolumbite...adamantine luster. Above right: The luster of heulandite, a mineral of the zeolite group, can be defined...Sulfur Mercury Ta 73 Tantalum B 5 Br 35 Cd Ca 48 20 Cadmium Calcium Mg Mn C 6 Carbon Hg...crust is called a magma chamber. The cooling of in gneiss formed in a metamorphic environment at high temperature | | | Book | | Tetrahedrite and realgar from the Binn Valley, Switzerland Pages 70-71: Ruorite crystals from the People's...adamantine Juster. Above right: The luster of heulandite. a mineral of the zeo/ite group, can be defined...exhibit clear planes of cleavage, such as brucite, heulandite, the minerals in the chlorite group and the micas...Symbol number (Z) Ac Al Sb Ar As At Ba Be Bi B Br Cd Ca C Ce Cs Cl Cr Co Cu Dy Er Eu F Fr Gd Ga Ge Au HI...metamorphic rocks. Above: corundum crystal contained in gneiss formed in a metamorphic environment at high temperature |
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Gneiss quarries, Arvigo, Calanca, Moesa Region, Grisons, Switzerland