Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Nepheline from
San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy


08406130017272048021570.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
05247430017272004929579.jpg
Nepheline, etc.

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
09570700017272004935482.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
03216890017272004955092.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
06915800017866629663243.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
05247430017272004929579.jpg
Nepheline, etc.

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
09570700017272004935482.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
03216890017272004955092.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
08406130017272048021570.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
01207190017272004999453.jpg
Nepheline, etc.

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
09570700017272004935482.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
00843360017367386723755.jpg
Nepheline

San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
Locality type:Quarry
Classification
Species:Nepheline
Formula:Na3K(Al4Si4O16)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Hornblende Root Name Group3
Pyrochlore Group2
Diopside2
Fluorite1
Andradite1
Sanidine1
Wollastonite1
Aragonite1
Fluorapatite1
Meionite1
Guarinite1
Amphibole Supergroup1
Titanite1
Data
Mineral Data:Click here to view Nepheline data
Locality Data:Click here to view San Vito Quarry, San Vito, Ercolano, Metropolitan City of Naples, Campania, Italy
Photo GalleryView Gallery (28 photos)
Data Identifiers
Mindat Occurrence Record ID:479644
Long-form Identifier:1:3:479644:2
GUID (UUID V4):0
Nearest other occurrences of Nepheline
4.6km (2.9 miles) ⓘTrapolino Quarry (Cava Nuova), Somma Vesuviana, Metropolitan City of Naples, Campania, Italy
8.8km (5.5 miles) ⓘVilla Inglese quarries, Torre del Greco, Metropolitan City of Naples, Campania, Italy
16.1km (10.0 miles) ⓘSoccavo, Naples, Metropolitan City of Naples, Campania, Italy
62.1km (38.6 miles) ⓘRoccamonfina Volcanic Complex, Caserta, Campania, Italy
62.8km (39.0 miles) ⓘOrchi, Conca della Campania, Roccamonfina Volcanic Complex, Caserta, Campania, Italy
References
Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI
Balassone, Giuseppina, Scordari, Fernando, Lacalamita, Maria, Schingaro, Emanuela, Mormone, Angela, Piochi, Monica, Petti, Carmela, Mondillo, Nicola (2013) Trioctahedral micas in xenolithic ejecta from recent volcanism of the Somma-Vesuvius (Italy): Crystal chemistry and genetic inferences. Lithos, 160. 84-97 doi:10.1016/j.lithos.2012.12.004
 
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