| Classification |
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| Species: | 'Tourmaline' (not an IMA approved species) |
| Formula: | AD3G6 (T6O18)(BO3)3X3Z |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Tourmaline data |
| Locality Data: | Click here to view Pian Secco, Tremola Valley, Airolo, Leventina, Ticino, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 559715 |
| Long-form Identifier: | 1:3:559715:4 |
| GUID (UUID V4): | df13f2d0-be01-46e0-a896-9d9c8049b26a |
| Nearest other occurrences of Tourmaline |
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| 2.6km (1.6 miles) | ⓘOvi di Scimfuss, Pontino Alp, Tremola Valley, Airolo, Leventina, Ticino, Switzerland |
| 4.1km (2.6 miles) | ⓘPizzo Sella, Cristallina Alp, Cristallina Valley, Ossasco, Bedretto, Leventina, Ticino, Switzerland |
| 4.3km (2.6 miles) | ⓘCristallina Alp, Cristallina Valley, Ossasco, Bedretto, Leventina, Ticino, Switzerland |
| 10.4km (6.5 miles) | ⓘPizzo Taneda, Piora Valley, Quinto, Leventina, Ticino, Switzerland |
| 12.0km (7.5 miles) | ⓘMutt Glacier, Gletsch, Furka pass area, Oberwald, Obergoms, Goms, Valais, Switzerland |
| 13.2km (8.2 miles) | ⓘGere Valley (Geren Valley), Gere (Geren), Oberwald, Obergoms, Goms, Valais, Switzerland |
| 15.4km (9.6 miles) | ⓘNufenen pass (Novena pass), Nufenen pass area (Novena pass area), Ägene Valley (Äginen Valley; Aeginen Valley), Ulrichen, Obergoms, Goms, Valais, Switzerland |
| 16.3km (10.1 miles) | ⓘCavradi gorge, Val Curnera, Tujetsch, Surselva Region, Grisons, Switzerland |
| 16.3km (10.1 miles) | ⓘRio Röni (Rio Roni), Maria Luisa Refuge area, Formazza, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 16.5km (10.2 miles) | ⓘGletsch, Furka pass area, Oberwald, Obergoms, Goms, Valais, Switzerland |
| References |
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| Reference Search (possible matching items) |
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 | | Book | | Prefecture. The twins occur in pegmatite with topaz, tourmaline, feldspar and apatite. Twins from this mine are...limpid with a high degree of development. In Switzerland Japan-law twins can be found associated with...'needle quartz' at Val Bedretto in the canton of Ticino. Typical specimens have a rather fragile nature...coarse-grained sulphides, oxides or tungstates. Tourmaline and chlorite inclusions are common and are more...sagenite. Rutile also may give rise to asterism. Tourmaline may also be found as acicular crystals in quartz |
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