Chromium-bearing Magnesio-arfvedsonite

[Na][Na2][Mg4(Fe3+,Cr3+)]Si8O22(OH)2
Also known as
  • Chromian Magnesio-arfvedsonite

Where it forms, where it's found

1recorded occurrences
Source · OpenStreetMap

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen2415.999383.976
43.40%
14SiSiliconSilicon828.085224.680
25.40%
12MgMagnesiumMagnesium424.30597.220
10.99%
11NaSodiumSodium322.99068.970
7.79%
26FeIronIron155.84555.845
6.31%
24CrChromiumChromium151.99651.996
5.88%
1HHydrogenHydrogen21.0082.016
0.23%
Total884.703100.00%

Mass share = atoms × atomic mass ÷ molar mass × 100

From Mindat formula

Synonyms

  • Chromian Magnesio-arfvedsonite

Literature, links & citation

Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Chromium-bearing Magnesio-arfvedsonite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/chromium-bearing-magnesio-arfvedsonite-39913},
  note      = {Accessed 2026-05-11}
}