Rubidium-bearing Muscovite

(K,Rb)Al2(AlSi3O10)(OH)2
Also known as
  • Rubidian Muscovite

Where it forms, where it's found

2recorded occurrences
Source · OpenStreetMap

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen1215.999191.988
39.68%
37RbRubidiumRubidium185.46885.468
17.67%
14SiSiliconSilicon328.08584.255
17.42%
13AlAluminiumAluminium326.98280.946
16.73%
19KPotassiumPotassium139.09839.098
8.08%
1HHydrogenHydrogen21.0082.016
0.42%
Total483.771100.00%

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

From Mindat formula

Synonyms

  • Rubidian Muscovite

Literature, links & citation

Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Rubidium-bearing Muscovite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/rubidium-bearing-muscovite-40216},
  note      = {Accessed 2026-05-11}
}