Crystopedia
IMA mineral species

Decrespignyite-(Y)

Y₄Cu(CO₃)₄Cl(OH)₅·2H₂O

Carbonate mineral.

Blue

Decrespignyite-(Y) specimen
Decrespignyite-(Y) and minor Kamphaugite-(Y).jpg · Wikimedia Commons (see file page for author & license)

Properties

🔷 Monoclinic
Chemical formulaY₄Cu(CO₃)₄Cl(OH)₅·2H₂O
ElementsY, Cu, C, O, Cl, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolDcp-Y
Nickel–Strunz class5.CC.35

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

🌍 Where it's found

Type locality (where it was first described): Paratoo copper mine, Australia

  • 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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