Oakstone

Where it forms, where it's found

3recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
56BaBarium Barium 1 137.327 137.327
58.84%
8OOxygen Oxygen 4 15.999 63.996
27.42%
16SSulfur Sulfur 1 32.060 32.060
13.74%
Total 233.383 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
56BaBarium	Barium	1	137.327	137.327	58.84%
8OOxygen	Oxygen	4	15.999	63.996	27.42%
16SSulfur	Sulfur	1	32.060	32.060	13.74%
	Total	233.383	100.00%

Synonyms

Onyx Barytes
Petrified Oak

Literature, links & citation

Citations

1993Sarjeant, W. A. S., Ford, T.D. (1993) Oakstone and other pseudostalactitic baryte from Derbyshire. UK Journal of Mines and Minerals 12, Rockbottom Publications. 10-14

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Oakstone — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/oakstone-2950},
  note      = {Accessed 2026-05-11}
}