Crystopedia
IMA mineral species

Mathesiusite

🪶 Soft, Scratches Easily

K₅(UO₂)₄(SO₄)₄(VO₅)(H₂O)₄

Uranyl vanadate-sulfate mineral.

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Mathesiusite specimen
Mathesiusite.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2
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💅🪙🍶🔪💎

Scratches with a fingernail.

🔷 Tetragonal
Chemical formulaK₅(UO₂)₄(SO₄)₄(VO₅)(H₂O)₄
ElementsK, U, O, S, V, H
Crystal systemTetragonal
Mohs hardness2
Density—
Streak—
Color—
IMA symbolMhe

“—” 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): Svornost mine, Czech Republic

  • 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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