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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Prehnite from
Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy


09321880017272727161738.jpg
Prehnite

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
09241540017271986402775.jpg
Prehnite

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
01566340017271986422778.jpg
Prehnite, etc.

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
03979840017271986436938.jpg
Prehnite, etc.

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
09324690017362389736358.jpg
Prehnite

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
09241540017271986402775.jpg
Prehnite

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
01566340017271986422778.jpg
Prehnite, etc.

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
03979840017271986436938.jpg
Prehnite, etc.

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
03329320017272727176154.jpg
Prehnite

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
02201140017271986441394.jpg
Prehnite

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
01566340017271986422778.jpg
Prehnite, etc.

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
03979840017271986436938.jpg
Prehnite, etc.

Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
Locality type:Outcrop
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Epidote3
Albite2
Analcime2
Amphibole Supergroup1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Ca' de Giannasi ophiolite, Frassinoro, Modena Province, Emilia-Romagna, Italy
Photo GalleryView Gallery (8 photos)
Data Identifiers
Mindat Occurrence Record ID:252066
Long-form Identifier:1:3:252066:7
GUID (UUID V4):0
Nearest other occurrences of Prehnite
4.4km (2.7 miles) ⓘBoccassuolo, Palagano, Modena Province, Emilia-Romagna, Italy
7.7km (4.8 miles) ⓘSasso Tignoso, Pievepelago, Modena Province, Emilia-Romagna, Italy
19.2km (12.0 miles) ⓘPonticelli, Vesale, Sestola, Modena Province, Emilia-Romagna, Italy
19.4km (12.1 miles) ⓘSasso Puzzino ophiolite, Renno, Pavullo nel Frignano, Modena Province, Emilia-Romagna, Italy
19.6km (12.2 miles) ⓘSasso Cerparo ophiolite (Sasso Cervaro ophiolite), Renno, Pavullo nel Frignano, Modena Province, Emilia-Romagna, Italy
20.0km (12.5 miles) ⓘSasso Cinturino, Villa Collemandina, Garfagnana, Lucca Province, Tuscany, Italy
20.8km (12.9 miles) ⓘVal di Sasso ophiolite, Pavullo nel Frignano, Modena Province, Emilia-Romagna, Italy
34.2km (21.2 miles) ⓘCerezzola, Canossa, Reggio Emilia Province, Emilia-Romagna, Italy
39.0km (24.2 miles) ⓘPoggio Barone (Rio della Castellina), Castel di Casio, Metropolitan City of Bologna, Emilia-Romagna, Italy
45.8km (28.5 miles) ⓘSerra dei Zanchetti (Serra del Zanchetto ophiolite), Camugnano, Metropolitan City of Bologna, Emilia-Romagna, Italy
References
Borghi, E., Borghi, M., and Scacchetti, M. (1996) Minerali dell'ofiolite di Ca' de Giannasi (MO). Rivista Mineralogica Italiana, 20, 3 (3-1996), 259-267.
 
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