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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Opal from
Maniglia Mt. Mine, Bellino, Cuneo Province, Piedmont, Italy


Locality type:Mine
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Maniglia Mt. Mine, Bellino, Cuneo Province, Piedmont, Italy
Data Identifiers
Mindat Occurrence Record ID:535630
Long-form Identifier:1:3:535630:0
GUID (UUID V4):0
Nearest other occurrences of Opal
23.0km (14.3 miles) ⓘValletta Mine, Vallone della Valletta, Canosio, Cuneo Province, Piedmont, Italy
31.4km (19.5 miles) ⓘClaï, Saint-Etienne-de-Tinée, Nice Arrondissement, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France
31.6km (19.7 miles) ⓘSeccarezze Quarries, Luserna San Giovanni, Metropolitan City of Turin, Piedmont, Italy
32.8km (20.4 miles) ⓘPravallino Quarry, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy
43.5km (27.0 miles) ⓘMonte Cruzore (Monte Cruzeau), Cesana Torinese, Metropolitan City of Turin, Piedmont, Italy
54.0km (33.5 miles) ⓘ"Bardonecchia road" quartzite vein, Oulx, Metropolitan City of Turin, Piedmont, Italy
64.7km (40.2 miles) ⓘSan Valeriano quarry, Piossasco, Metropolitan City of Turin, Piedmont, Italy
65.1km (40.4 miles) ⓘTignai Quarry, Tignai, Bussoleno, Metropolitan City of Turin, Piedmont, Italy
74.9km (46.5 miles) ⓘSant'Abaco, Caselette, Metropolitan City of Turin, Piedmont, Italy
76.4km (47.5 miles) ⓘCalvo Mt. magnesite quarries (Caselette magnesite quarries), Caselette, Metropolitan City of Turin, Piedmont, Italy
References
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta - Associazione Amici del Museo "F. Eusebio" Alba.
Piccoli, Gian Carlo, Vanini, Francesco, Ciriotti, Marco E., Marengo, Alessandra, Bittarello, Erica, Cámara, Fernando, Kolitsch, Uwe, Bracco, Roberto, Balestra, Corrado, Odicino, Gianluca, et al. (2021) Eggletonite e tamaite del Monte Maniglia, Bellino, Cuneo, Piemonte con aggiornamento sulla mineralogia locale [Eggletonite and Tamaite from Monte Maniglia, Bellino, Cuneo, Piedmont with an update on local mineralogy]. Micro, 19 (2). 96-103
 
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