IMA mineral species

Numanoite

Ca₄CuB₄O₆(OH)₆(CO₃)₂

Borate mineral.

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

Properties

Chemical formulaCa₄CuB₄O₆(OH)₆(CO₃)₂
ElementsCa, Cu, B, O, H, C
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolNum
Nickel–Strunz class6.DA.40

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

🌍 Where it's found

Type locality (where it was first described): Fuka mine, Japan

  • 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.