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Biotite from
Dervio-Colico road tunnel, Dorio, Lecco Province, Lombardy, Italy


Locality type:Tunnel
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Dervio-Colico road tunnel, Dorio, Lecco Province, Lombardy, Italy
Data Identifiers
Mindat Occurrence Record ID:968652
Long-form Identifier:1:3:968652:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.7km (0.4 miles) ⓘAlpe Sparesè, Dorio, Lecco Province, Lombardy, Italy
1.3km (0.8 miles) ⓘLaghetto pegmatitic dyke (Laghetto Quarry), Piona Peninsula, Colico, Lecco Province, Lombardy, Italy
1.7km (1.1 miles) ⓘSommafiume pegmatitic dyke (Alpe Sommafiume; Marategno Mine), Dorio, Lecco Province, Lombardy, Italy
5.2km (3.2 miles) ⓘState Road "SS 340 dir" works, Musso, Como Province, Lombardy, Italy
14.3km (8.9 miles) ⓘTaglio d'Inghirina, Livo, Como Province, Lombardy, Italy
15.3km (9.5 miles) ⓘSoè Valley, Bodengo Valley, Sondrio Province, Lombardy, Italy
16.3km (10.2 miles) ⓘPizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland
16.5km (10.3 miles) ⓘGarzelli Valley, Bodengo Valley, Sondrio Province, Lombardy, Italy
18.0km (11.2 miles) ⓘCama Valley, Cama, Moesa Region, Grisons, Switzerland
20.6km (12.8 miles) ⓘRoveredo-Laura road, Roveredo, Moesa Region, Grisons, Switzerland
References
Mottana A., Fusi A., Bianchi Potenza B., Crespi R., Liborio G. (1983): Hydrocarbon-bearing cordierite from the Dervio-Colico road tunnel (Como, Italy). N. Jahrb. Mineral. Abh., 148, 2, 181-199
Rosaspina C. (1984): Cordierite negli scisti sillimanitici dell'Alto Lario Orientale. Riv. Mineral. Ital., 8, 3 (3-1984), 110.
 
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