Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Offretite from
Santa Cristina, Marano di Valpolicella, Verona Province, Veneto, Italy


Locality type:Hamlet
Classification
Species:Offretite
Formula:KCaMg(Si13Al5)O36 · 15H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Offretite data
Locality Data:Click here to view Santa Cristina, Marano di Valpolicella, Verona Province, Veneto, Italy
Data Identifiers
Mindat Occurrence Record ID:1307751
Long-form Identifier:1:3:1307751:6
GUID (UUID V4):0
Nearest other occurrences of Offretite
0.9km (0.6 miles) ⓘPrun, Negrar di Valpolicella, Verona Province, Veneto, Italy
21.9km (13.6 miles) ⓘCattignano quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy
22.0km (13.7 miles) ⓘChiereghini Valley, San Giovanni Ilarione, Verona Province, Veneto, Italy
23.3km (14.5 miles) ⓘBeltrami, San Giovanni Ilarione, Verona Province, Veneto, Italy
23.7km (14.7 miles) ⓘBasalt quarry (San Giovanni Ilarione quarry), San Giovanni Ilarione, Verona Province, Veneto, Italy
25.4km (15.8 miles) ⓘBertocchi quarry (ex Alvese quarry), San Pietro Mussolino, Vicenza Province, Veneto, Italy
26.5km (16.4 miles) ⓘMonte Madarosa Quarry, Roccolo Pass, Chiampo, Vicenza Province, Veneto, Italy
26.7km (16.6 miles) ⓘBentonite mine, Contrada Re, Monte Furlan, Cerealto, Valdagno, Vicenza Province, Veneto, Italy
26.8km (16.7 miles) ⓘRoccolo Pass tuff outcrop (Monte Calvarina west slope), San Giovanni Ilarione, Verona Province, Veneto, Italy
27.7km (17.2 miles) ⓘMonte Calvarina, Roncà, Verona Province, Veneto, Italy
References
Mattioli, Michele, Giordani, Matteo, Arcangeli, Pierluca, Valentini, Laura, Boscardin, Matteo, Pacella, Alessandro, Ballirano, Paolo (2018) Prismatic to Asbestiform Offretite from Northern Italy: Occurrence, Morphology and Crystal-Chemistry of a New Potentially Hazardous Zeolite. Minerals, 8 (2) 69 doi:10.3390/min8020069
 
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