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Allchar mine dump (central zone): Fe-Sb oxides on stibnite

Kožuf Mountains, Allchar, North Macedonia

Mine tailings and waste rock

Type
Mine tailings and waste rock

Kaufmann et al. (2024, Chemical Geology): in situ δ123Sb of secondary antimony minerals formed by stibnite weathering; some keep the stibnite signature (complete Sb transfer), others (tripuhyite, chapmanite, hydroxyferroroméite, stibiconite) are lighter, precipitated from only part of the dissolved Sb or adsorbed on iron oxides. One waste-rock sample from the central zone of the deposit (41°08'54.2" N, 21°57'29.3" E); rims with Fe/(Fe+Sb) of 0.46 to 0.65, identified as hydroxyferroroméite by the supplement Raman but called tripuhyite in a figure caption.

δ123Sb in ‰ (per mil) Values of the same system

Standard : NIST SRM 3102a

ValueRangenMineral or matrixSource
0.294 ± 0.258 ‰−0.047 / 0.575 ‰7Fe-Sb oxide (hydroxyferroroméite or tripuhyite) on stibnite
Mean and standard deviation recalculated from 7 analyses, -0.047 to +0.575 (Alc1-79 +0.242; Alc1-81 +0.180; Alc2-85 -0.047; Alc2-88 +0.031; Alc3-91 +0.510; Alc3-92 +0.566; Alc4-95 +0.575); ± 0.042 to 0.097 ‰ (2σ); each rim is 0.16 to 0.30 ‰ lighter than the stibnite it surrounds (Alc1 +0.418, Alc2 +0.152, Alc3 +0.759, Alc4 +0.876 ‰, deposits database).
Kaufmann et al. (2024), Weathering-induced Sb isotope fractionation during leaching of st…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Allchar mine dump (central zone): Fe-Sb oxides on stibnite, isotope signatures. https://www.isofind.tech/isotopes/en/sites/halde-de-la-mine-d-allchar-zone-centrale-oxydes-fe-sb-sur-stibine/ (accessed 2026-10-16).

@misc{isofind2026allcharminedumpcentralzonefes,
  title = {Allchar mine dump (central zone): Fe-Sb oxides on stibnite, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/halde-de-la-mine-d-allchar-zone-centrale-oxydes-fe-sb-sur-stibine/},
  note = {Accessed 2026-10-16}
}

Updated : 2026-10-16