Crystopedia
IMA mineral species

Nepheline

Na₃K(Al₄Si₄O₁₆)

Tectosilicate mineral.

RedBrownGrayWhite & Clear

Nepheline specimen
Nepheline-Schorlomite-250211.jpg · Wikimedia Commons (see file page for author & license)

Properties

🔷 Hexagonal✏️ streak white
Chemical formulaNa₃K(Al₄Si₄O₁₆)
ElementsNa, K, Al, Si, O
Crystal systemHexagonal
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolNph
Nickel–Strunz class9.FA.05

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

🌍 Where it's found

Type locality (where it was first described): Mount Somma, Italy

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.

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