IMA mineral species

Weberite

🪶 Soft, Scratches Easily

Na₂MgAlF₇

Neso-aluminofluoride mineral.

Weberite specimen
Weberite (greenish grey) in Kryolite - Mineralogisches Museum Bonn2.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness3.5
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💅🪙🍶🔪💎

A copper coin scratches it.

⚖ Density2.837 g/cm³
Average
Chemical formulaNa₂MgAlF₇
ElementsNa, Mg, Al, F
Crystal systemOrthorhombic
Mohs hardness3.5
Density2.837 g/cm³
Streak—
Color—
IMA symbolWeb
Nickel–Strunz class3.CB.25

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 3.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.

🌍 Where it's found

Type locality (where it was first described): Ivigtuut cryolite deposit, Greenland

  • 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.