IMA mineral species

Agardite-(Ce)

🪶 Soft, Scratches Easily

CeCu²⁺₆(AsO₄)₃(OH)₆·3H₂O

Arsenate mineral.

Agardite-(Ce) specimen
Agardite Clara5.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness3
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💅🪙🍶🔪💎

A copper coin scratches it.

Chemical formulaCeCu²⁺₆(AsO₄)₃(OH)₆·3H₂O
ElementsCe, Cu, As, O, H
Crystal systemHexagonal
Mohs hardness3
Density—
Streak—
Color—
IMA symbolAgr-Ce
Nickel–Strunz class8.DL.15

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 3: 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): Clara mine, Germany

  • 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.