Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Chalcocite from
Monte Gurlano prospect (Fontanelle), Monghidoro, Metropolitan City of Bologna, Emilia-Romagna, Italy


Locality type:Prospect
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Monte Gurlano prospect (Fontanelle), Monghidoro, Metropolitan City of Bologna, Emilia-Romagna, Italy
Data Identifiers
Mindat Occurrence Record ID:1437078
Long-form Identifier:1:3:1437078:4
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
2.5km (1.5 miles) ⓘTre Poggioli, Firenzuola, Metropolitan City of Florence, Tuscany, Italy
7.2km (4.5 miles) ⓘBisano Mine, Monterenzio, Metropolitan City of Bologna, Emilia-Romagna, Italy
9.4km (5.8 miles) ⓘCa' Pianelle (Pianelle Prospect), Villa di Sassonero, Monterenzio, Metropolitan City of Bologna, Emilia-Romagna, Italy
10.5km (6.5 miles) ⓘSassonero Mine, Villa di Sassonero, Monterenzio, Metropolitan City of Bologna, Emilia-Romagna, Italy
59.5km (37.0 miles) ⓘNalbi, Impruneta, Metropolitan City of Florence, Tuscany, Italy
60.4km (37.5 miles) ⓘCarraie Hill, Impruneta, Metropolitan City of Florence, Tuscany, Italy
64.5km (40.1 miles) ⓘCa' de Vanni (Cà Vanni), Frassinoro, Modena Province, Emilia-Romagna, Italy
78.8km (49.0 miles) ⓘSasso Cinturino, Villa Collemandina, Garfagnana, Lucca Province, Tuscany, Italy
83.9km (52.1 miles) ⓘCastagno prospects (Migliarino and Forra prospects), Il Castagno, Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy
84.8km (52.7 miles) ⓘGambassi Quarry (Borgo alla Collina), Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy
References
Pedroni, G., Rosciglione, L., Varoli, M., and Baratta, C. (1996) I minerali delle ofioliti nell'Appennino bolognese e modenese. Gruppo A.V.I.S. Mineralogia e Speleologia, Bologna, 286 pages.
 
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