Bogdanovite

(Au,Te,Pb)3(Cu,Fe)
IMA status
  • Approved
IMA symbol
Bog
Discovered
1978
IMA approved
1978
Also known as
  • IMA1978-019

Where it forms, where it's found

Geological setting

Secondary zone.

Type locality
Aginskoe Au deposit (Aginskoye deposit)
  1. Central Kamchatka mining district
  2. Bystrinsky District
  3. Kamchatka Krai
  4. Russia

55.4667°, 158.0000°

11recorded occurrences
Source · OpenStreetMap

Safety & handling

Physical

Hardness
123456789104.5/ 10 MOHS
  1. 1Talc
  2. 2Gypsum
  3. 3Calcite
  4. 4Fluorite
  5. 5Apatite
  6. 6Orthoclase
  7. 7Quartz
  8. 8Topaz
  9. 9Corundum
  10. 10Diamond
Lustre
Sub-Metallic
Transparency
Opaque
Colour
Rose brown to bronze

Quickly tarnishes in air to bluish-black.

Cleavage
None Observed

Optical

Anisotropism
Unusual. Purple-raspberry or grayish-lilac to gold and yellow.
Tropism
Anisotropic
Reflectance R%
(11.8,15.8) 420, (10.5,15.2) 440, (9.2,14.8) 460, (8.0,14.8) 480, (6.9,16.9) 500, (6.2,22.5) 520, (5.6,29.5) 540, (6.1,34.5) 560, (8.4,37.6) 580, (13.5,39.2) 600, (21.0,40.0) 620, (29.5,39.8) 640, (36.2,39.0) 660, (41.2,37.7) 680, (44.9,35.7) 700
Notes

Reflectance data for Cu-rich material. Data also provided for Fe-rich material. See Spiridonov and Chvileva (1979) or Fleischer et al. (1979). Somewhat similar to rickardite and bilibinskite.

Reflected-light panel
17.3 %anisotropic · dual curve
Specimen sRGB 170, 56, 41
White reference100 % reflector under same lamp
R₁ R₂
Mode
Anisotropism
Unusual. Purple-raspberry or grayish-lilac to gold and yellow.

Crystallography

Crystal system
Isometric
Cell parameters
a = 4.087 Å
Morphology

Massive

Type-locality form

Intergrowths of differently oriented grains, to 1 mm. Aggregates, varying radially in composition. The size of individual grains is < 10 μm.

Comment

pseudocubic, probably orthorhombic.

Crystal structure

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
82PbLeadLead3207.200621.600
36.25%
79AuGoldGold3196.967590.901
34.46%
52TeTelluriumTellurium3127.600382.800
22.32%
29CuCopperCopper163.54663.546
3.71%
26FeIronIron155.84555.845
3.26%
Total1714.692100.00%

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

From IMA formula

Impurities
  • Ag
  • Se

Synonyms

  • IMA1978-019

In other languages

German
Bogdanovit · IMA 1978-019
Italian
Bogdanovite

Classification

Strunz
10th ed.

2.BA.80

  • 2Sulfides and SulfosaltsClass
  • 2.BMetal Sulfides, M: S > 1: 1 (mainly 2: 1)Division
  • 2.BAWith Cu, Ag, AuGroup
  • 2.BA.80BogdanoviteSpecies
Dana
8th ed.

02.02.03.01

  • 02SulfidesClass
  • 02.02AmBnXp, with (m+n):p = 3:1Type
  • 02.02.03— unnamed intermediate level —Group
  • 02.02.03.01BogdanoviteSpecies
CIM

3.3.13

  • 3Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)Class
  • 3.3Sulphides etc. of AuGroup
  • 3.3.13BogdanoviteSpecies

Group, growth & confusion

Commonly confused with
1 mineral

Literature, links & citation

Citations
  1. Bayliss, P. (1990) Revised unit cell dimensions, space group, and chemical formula of some metallic minerals. Canadian Mineralogist: 28: 751-755.
  2. 1979Fleischer, Michael, Burns, Roger G., Cabri, Louis J., Chao, George Y., Hogarth, D. D., Pabst, Adolf (1979) New Mineral Names. American Mineralogist, 64 (11-12) 1329-1334
  3. 1979Spiridonov, E.M., Chvileva, T.N. (1979) Bogdanovite, Au5(Cu,Fe)3(Te,Pb)2, a new mineral of the group of inter-metallic compounds of gold. Vestnik Moskovskogo Universiteta, Geologiya: 1979(1): 44-52.
  4. 1991Jambor, John L., Burke, Ernst A. J. (1991) New Mineral Names. American Mineralogist, 76 (11-12) 2020-2026
  5. 1991Spiridonov, E.M. (1991) Composition and structure of the bilibinskite-bogdanovite mineral group. Novye Dannye o Mineralakh: 37: 138-145.
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Bogdanovite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/bogdanovite-702},
  note      = {Accessed 2026-05-11}
}