Joegoldsteinite

MnCr2S4
IMA status
  • Approved
IMA symbol
Jgs
IMA approved
2015
Also known as
  • IMA2015-049
  • Joegoldsteiniet
  • UM1974-10-S:CrFeMn

Where it forms, where it's found

Geological setting

iron meteorite group IVA

meteorites (Indarch EH4 enstatite chondrite)

Type locality
Social Circle meteorite
  1. Walton County
  2. Georgia
  3. USA

33.7000°, -83.7000°

3recorded occurrences
Source · OpenStreetMap

Physical

Density
3.71 g/cm³

Crystallography

Crystal system
Isometric
Space group
Fd-3m
Cell parameters
a = 10.11 Å
Unit cell volume
1033.4 ų
Z
8
Type-locality form

two subhedral inclusions, 13 μm and 15 μm in diameter

Comment

EBSD determination

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
16SSulfurSulfur432.060128.240
44.66%
24CrChromiumChromium251.996103.992
36.21%
25MnManganeseManganese154.93854.938
19.13%
Total287.170100.00%

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

From IMA formula

Impurities
  • Fe

Synonyms

  • IMA2015-049
  • Joegoldsteiniet
  • UM1974-10-S:CrFeMn

In other languages

German
IMA 2015-049 · Joegoldsteinit
Italian
Joegoldsteinite

Classification

Strunz
10th ed.

2.DA.05

  • 2Sulfides and SulfosaltsClass
  • 2.DMetal Sulfides, M: S = 3 :4 and 2:3Division
  • 2.DAM:S = 3:4Group
  • 2.DA.05JoegoldsteiniteSpecies

Group, growth & confusion

Literature, links & citation

Citations
  1. 2015Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015, CNMNC Newsletter No 27. Mineralogical Magazine, 79 (5). 1223-1230 doi:10.1180/minmag.2015.079.5.16DOI: 10.1180/minmag.2015.079.5.16
  2. 2016Isa, J., Ma, C., Rubin, A.E. (2016) Joegoldsteinite: A New Sulfide Mineral (MnCr2S4) from the IVA Iron Meteorite, Social Circle. Lunar and Planetary Science Conference: 47: 1813. https://www.hou.usra.edu/meetings/lpsc2016/pdf/1813.pdf
  3. 2016Isa, Junko, Ma, Chi, Rubin, Alan E. (2016) Joegoldsteinite: A new sulfide mineral (MnCr2S4) from the Social Circle IVA iron meteorite. American Mineralogist, 101 (5) 1217-1221 doi:10.2138/am-2016-5594DOI: 10.2138/am-2016-5594
  4. 2017(2017) Joegoldsteinite. Handbook of Mineralogy. Mineralogical Society of America
  5. 2019Bosi, Ferdinando, Biagioni, Cristian, Pasero, Marco (2019) Nomenclature and classification of the spinel supergroup. European Journal of Mineralogy, 31 (1) 183-192 doi:10.1127/ejm/2019/0031-2788 DOI: 10.1127/ejm/2019/0031-2788
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Joegoldsteinite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/joegoldsteinite-46804},
  note      = {Accessed 2026-05-11}
}