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Smoky Quartz from
Collagna, Reggio Emilia Province, Emilia-Romagna, Italy

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Locality type:Parish
Classification
Species:Quartz var:Smoky Quartz
Formula:SiO2
Comments:Black and brown crystals found in gypsum and anhydrite rocks at this locality are authigenic quartz crystals colored by inclusions. They are not smoky quartz.
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view Collagna, Reggio Emilia Province, Emilia-Romagna, Italy
Data Identifiers
Mindat Occurrence Record ID:758699
Long-form Identifier:1:3:758699:6
GUID (UUID V4):0
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
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