| Locality type: | Tunnel |
| Classification |
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| Species: | Laumontite |
| Formula: | CaAl2Si4O12 · 4H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Laumontite data |
| Locality Data: | Click here to view Martigny road tunnel, Mont Chemin mining district, Martigny, Valais, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 152135 |
| Long-form Identifier: | 1:3:152135:1 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Laumontite |
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| 23.3km (14.5 miles) | âTaveyanne, Gryon, Aigle, Vaud, Switzerland |
| 31.9km (19.8 miles) | âPiÃĻce Glacier, Arolla, Arolla Valley, EvolÃĻne, HÃĐrens, Valais, Switzerland |
| 37.4km (23.2 miles) | âMiage Glacier, Courmayeur, Aosta Valley, Italy |
| 57.6km (35.8 miles) | âMittal-Hohtenn road tunnel, Mittal, Steg-Hohtenn, Westlich Raron, Valais, Switzerland |
| 59.0km (36.7 miles) | âStockchnubel, Stockhorn, Gorner glacier area, Zermatt, Visp, Valais, Switzerland |
| 75.8km (47.1 miles) | âSimplon Railway tunnel (north section), Termen, Brig, Valais, Switzerland |
| 79.9km (49.7 miles) | âAntronapiana, Antrona Schieranco, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 83.3km (51.8 miles) | âLas Superiore Quarry, Traversella, Metropolitan City of Turin, Piedmont, Italy |
| 84.8km (52.7 miles) | âDallenfluh, Sigriswil, Thun, Bern, Switzerland |
| 85.9km (53.4 miles) | âMÃĪtti Valley, Grengiols, Ãstlich Raron, Valais, Switzerland |
| References |
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