| Locality type: | Quarry |
| Classification |
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| Species: | Heulandite-Ca |
| Formula: | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Heulandite-Ca data |
| Locality Data: | Click here to view Gneiss quarry, Promontogno, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 549696 |
| Long-form Identifier: | 1:3:549696:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Heulandite-Ca |
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| 1.3km (0.8 miles) | ⓘTumbler, Soglio, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| 5.3km (3.3 miles) | ⓘPunta Trubinasca, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 7.5km (4.7 miles) | ⓘPiana Valley, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 8.5km (5.3 miles) | ⓘAverta Valley (Northern Glacial Cirque), Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 12.8km (8.0 miles) | ⓘMonte del Forno, Val Forno, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| 15.1km (9.4 miles) | ⓘSissone Valley, Chiesa in Valmalenco, Sondrio Province, Lombardy, Italy |
| 16.9km (10.5 miles) | ⓘSan Giorgio, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 34.5km (21.4 miles) | ⓘGneiss quarries, Arvigo, Calanca, Moesa Region, Grisons, Switzerland |
| 56.3km (35.0 miles) | ⓘUpper Val Lia, Valdidentro, Sondrio Province, Lombardy, Italy |
| 61.8km (38.4 miles) | ⓘBarcuns, Trun, Surselva Region, Grisons, Switzerland |
| References |
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