Schreibersite (of Shephard)

Where it forms, where it's found

1recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
24CrChromium Chromium 2 51.996 103.992
51.95%
16SSulfur Sulfur 3 32.060 96.180
48.05%
Total 200.172 100.00%
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
24CrChromium	Chromium	2	51.996	103.992	51.95%
16SSulfur	Sulfur	3	32.060	96.180	48.05%
	Total	200.172	100.00%

Classification

Strunz

10th ed.

2.DB.40

2Sulfides and SulfosaltsClass
2.DMetal Sulfides, M: S = 3 :4 and 2:3Division
2.DBM:S = 2:3Group
2.DB.40Schreibersite (of Shephard)Species

Literature, links & citation

Citations

1846Sheperd (1846) American Journal of Science, series 2: 2: 383.
1848Shepard (1848) American Journal of Science: 6: 411.
1957Jellinek, F. (1957) The structures of the chromium sulphides. Acta Crystallographica, 10 (10) 620-628 doi:10.1107/s0365110x57002200DOI: 10.1107/s0365110x57002200

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Schreibersite (of Shephard) — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/schreibersite-of-shephard-3581},
  note      = {Accessed 2026-05-11}
}