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Nalbi, Impruneta, Florence Province, Tuscany, Italy

(I Nalbi, Impruneta, Firenze, Toscana, Italia)

This area between Nalbi ditch and Grassina torrent, at the east of the built-up area, was exploited around 1910 (Abresch claim) along Nalbi ditch and were found several large copper blocks (over 100 kg alsoo). After the WW I mining works restart around 1932 and in 1937 were found six large copper blocks (the biggest of 1750 kg).
Approximately in the same years sart mining along Grassina torrent; all the works were abandoned during WW II.

Map reference: Regione Toscana, CTR 1 : 10000 Table 275120

References:
-Lotti B., 1931 - Il rame nativo nelle rocce ofiolitiche dell'Impruneta presso Firenze. - La Min. Ital., 15: 1-3.
-Rodolico F., 1933 - Studi sulla datolite della formazione ofiolitica. - Period. Mineral., 4: 1-14.
-Rodolico F., 1935 - Cristalli di cinabro del Monte Amiata e di calcosina dell'Impruneta (Toscana). - Period. Mineral., 6: 25-30.
-Rodolico F., 1936 - Studi sul rame nativo della formazione ofiolitica. - Period. Mineral., 7: 99-107.
-Abbolito E., 1938 - I minerali cupriferi dell'Impruneta (Toscana). - Riv. Sci., 9: 207-212.
-Minguzzi C., 1948 - Ricerche sulla formazione ofiolitica dell'Impruneta. I. Le rocce ed i minerali. - Atti Soc. Tosc. Sc. Nat., Mem., 55: 175-179.
-Carobbi G., Rodolico F., 1976 - I minerali della Toscana. Saggio di mineralogia regionale. - Accad. Tosc. Sc. Lett. «La Colombaria». Ed. Leo G. Olschki, Firenze.
-Batacchi C., 1988 - La galleria di Nalbi: storia e minerali. - Notiz. Gr. Mineral. Fiorent., XV; 1: 15-17.
-Brizzi G., Meli R., 1996 - I minerali della formazione ofiolitica dell'Impruneta (FI). - Riv. Mineral. Ital., 20 1: 81-98.
-Capperi M., Bazzoni C., 1996 - Impruneta (FI). Nuovi ritrovamenti. - Riv. Mineral. Ital., 20 4: 331-333.





Mineral List:
Ankerite
Anorthite
var: Labradorite

Aragonite
'Asbestos'
Azurite
Baryte
Bornite
Calcite
Chalcanthite
Chalcocite
Chrysocolla
Copper
Cuprite
var: Chalcotrichite
Datolite
'Diallage'
Digenite
Djurleite
Gypsum
Ilmenite
Magnesite
Malachite
Prehnite
Pyrite
Quartz
var: Smoky Quartz
Talc
Tenorite
Zoisite
var: Thulite



29 entries listed. 23 valid minerals.

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