IMA mineral species

Vanarsite

🪶 Soft, Scratches Easily

NaCa₁₂(H₂O)₆₄(As³⁺V⁵⁺₈.₅V⁴⁺₃.₅As⁵⁺₆O₅₁)₂·14H₂O

Hydrous oxide mineral.

Blue

Properties

⛏ Mohs hardness2
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💅🪙🍶🔪💎

Scratches with a fingernail.

Chemical formulaNaCa₁₂(H₂O)₆₄(As³⁺V⁵⁺₈.₅V⁴⁺₃.₅As⁵⁺₆O₅₁)₂·14H₂O
ElementsNa, Ca, H, O, As, V
Crystal systemMonoclinic
Mohs hardness2
Density—
Streak—
Color—
IMA symbolVns
Nickel–Strunz class8.FD.10

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 2: 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): Packrat mine, Gateway, United States

  • 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.