IMA mineral species

Neighborite

🪶 Soft, Scratches Easily

NaMgF₃

Halide mineral.

BrownWhite & Clear

Neighborite specimen
Neighborite-467251.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness4.5
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💅🪙🍶🔪💎

A steel knife scratches it, it won't scratch glass.

⚖ Density3.146 g/cm³
Average
Chemical formulaNaMgF₃
ElementsNa, Mg, F
Crystal systemOrthorhombic
Mohs hardness4.5
Density3.146 g/cm³
Streak—
Color—
IMA symbolNbo
Nickel–Strunz class3.AA.35

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 4.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.