IMA mineral species

Macfallite

Ca₂Mn³⁺₃(SiO₄)(Si₂O₇)(OH)₃

Sorosilicate mineral.

Macfallite specimen
Macfallite-mrz143a.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₂Mn³⁺₃(SiO₄)(Si₂O₇)(OH)₃
ElementsCa, Mn, Si, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolMcf
Nickel–Strunz class9.BG.15

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

🌍 Where it's found

Type locality (where it was first described): Keweenaw County, 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.