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Nepheline - Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy (TYPE LOCALITY) (#:MINS7769)

Old classic !
Specimen featuring a white hexagonal prisms of Nepheline, pretty lustruous, 5 mm wide with brown Vesuvianite xls in association on matrix. From the type locality.


Formula :
KNa3[AlSiO4]4

System: hexagonal Hardness:5½-6 Rarity:not common
Strunz id:VIII/J.2-10 - SILICATES
Name origin: From the Greek "nephele" for "cloud" since it turns cloudy when treated with strong acid.

Specimen weight:38 gr.
Crystal size:5 mm wide
Overall size: 45mm x 28 mm x 27 mm

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Nepheline - Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy (TYPE LOCALITY)

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