| Classification |
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| Species: | 'Heulandite Subgroup' (not an IMA approved species) |
| Formula: | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Heulandite Subgroup data |
| Locality Data: | Click here to view Rio Alfenza, Crodo, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 890865 |
| Long-form Identifier: | 1:3:890865:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Heulandite Subgroup |
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| 4.1km (2.5 miles) | ⓘRencio quarries, Crodo gneiss quarries, Crodo, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 6.1km (3.8 miles) | ⓘAusone quarry, Premia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 11.2km (7.0 miles) | ⓘMonte Cervandone area, Devero Alp, Baceno, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 12.5km (7.7 miles) | ⓘGeisspfad area, Binn, Goms, Valais, Switzerland |
| 15.7km (9.8 miles) | ⓘVal di Crana, Toceno, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 19.7km (12.2 miles) | ⓘVergeletto Valley, Onsernone Valley, Centovalli, Locarno, Ticino, Switzerland |
| 19.9km (12.3 miles) | ⓘPianasca Quarry, Villadossola, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 22.1km (13.7 miles) | ⓘAlte Bach, Lax, Goms, Valais, Switzerland |
| 24.3km (15.1 miles) | ⓘGoppisberg, Mörel, Mörel-Filet, Östlich Raron, Valais, Switzerland |
| 25.2km (15.7 miles) | ⓘGneiss quarries, Riveo, Maggia, Vallemaggia, Ticino, Switzerland |
| References |
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Rio Alfenza, Crodo, Verbano-Cusio-Ossola Province, Piedmont, Italy