Youngite

SiO2
Variety of
Agate
AgateSiO2

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
8OOxygenOxygen215.99931.998
53.26%
14SiSiliconSilicon128.08528.085
46.74%
Total60.083100.00%

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

From Mindat formula

Literature, links & citation

Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Youngite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/youngite-39865},
  note      = {Accessed 2026-05-11}
}