Where it forms, where it's found
- Geological setting
High temperature fumarole 600–700 degrees C
- Type locality
- Kudriavy volcano
- Iturup Island
- Kurilsky District
- Kuril Islands
- Sakhalin Oblast
- Russia
45.3813°, 148.8172°
1recorded occurrences
Safety & handling
Physical
Optical
- Bireflectance
- None
- Tropism
- Isotropic
- Reflectance R%
- (38.4, 35.6) 470, (38.3, 36.2) 546, (37.1, 35.4) 589, (36.6, 35.2) 650
Reflected-light panel
R̄ 37.6 %anisotropic · dual curve
Specimen
White reference
R₁ R₂
Mode
Crystallography
- Space group
- Pbam
- Cell parameters
- a = 21.331(4) Å · b = 26.435(5) Å · c = 4.006(1) Å
- Ratio a:b:c
- 1 : 1.239 : 0.188
- Unit cell volume
- 2258.92 ų
- Z
- 4
- Type-locality form
Druse-like aggregates of elongated slender plates to 0.4 mm long and 0.05 mm across, usually striated along elongation and easily split to needles. Box-shaped skeletal crystals are also ommon.
Crystal structure
Chemical composition
Synonyms
- IMA2014-026
- Znamenskyiet
In other languages
- German
- IMA 2014-026 · Znamenskyit
- Italian
- znamenskyite
Classification
Strunz
10th ed.2.LB.55
- 2Sulfides and SulfosaltsClass
- 2.LUnclassified SulfosaltsDivision
- 2.LBWith essential PbGroup
- 2.LB.55ZnamenskyiteSpecies
Literature, links & citation
Citations
- 1986Krämer, V. (1986) Lead indium bismuth chalcogenides. III. Structure of Pb4In2Bi4S13. Acta Crystallographica, C42, 1089-1091.
- 2014Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) New minerals and nomenclature modifications approved in 2014, CNMNC Newsletter No 21. Mineralogical Magazine, 78 (4) 797-804 doi:10.1180/minmag.2014.078.4.03DOI: 10.1180/minmag.2014.078.4.03
- 2015Chaplygin, I.V., Mozgova, N.N., Bryzgalov, I.A. Belakovsky, D.I., Pervukhina, N.V., Borisov, S.V. and Magarill, S.A. (2015) Znamenskyite, Pb4In2Bi4S13 – A new mineral species from fumaroles of Kudriavy volcano, Iturup Isl., Kuriles. XII International Conference - New Ideas in Earth Sciences: 62-63.
- 2022(2022) Znamenskyite. Handbook of Mineralogy. Mineralogical Society of America
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Znamenskyite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/znamenskyite-46157},
note = {Accessed 2026-05-11}
}