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Balkanite

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02977250015675213991846.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
08579490014947142118423.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
02942050014962462015644.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
08852870015672890197834.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
08579490014947142118423.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
02942050014962462015644.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
02977250015675213991846.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
08579490014947142118423.jpg
Balkanite

Manhattan Mining District, Toquima Range, Nye Co., Nevada, USA
Hide all sections | Show all sections

About BalkaniteHide

Formula:
Cu9Ag5HgS8
alternatively (Cu9−xMe2+x)Ag5−xHgS8 (x = 0.3) (Biagioni & Bindi, 2017)
Colour:
Steel Grey
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
6.318
Crystal System:
Monoclinic
Name:
For the medieval and popular name of the Stara Planina (Balkan Mountains), the type locality.
Compare danielsite.

Balkanite's structure is not layered, but may be desribed by (1) alternation (along a) of Cu-rich and Ag-rich layers or (2) as the one based on two alternating atomic (010) layers: [Cu4Ag3HgS4]+ and [Cu5Ag2S4]−, or (3) alternation of two polyhedral layers: [Cu7Ag3S4]2+ and [Cu2Ag2HgS4]2−. Coordination of Hg is linear, Ag - tetrahedral or a distorted octahedral, and that of Cu - linear or planar triangular.


Classification of BalkaniteHide

IMA status:
Approved
Strunz 8th ed.:
2/B.09-20
Nickel-Strunz 10th (pending) ed.:
2.BD.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
D : With Hg, Tl
Dana 8th ed.:
2.16.7.1

2 : SULFIDES
16 : Miscellaneous
Hey's CIM Ref.:
3.5.6

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
5 : Sulphides etc. of Hg and Tl

Physical Properties of BalkaniteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Steel Grey
Hardness:
3½ on Mohs scale
Hardness:
VHN100=79.4 - 91.6 kg/mm2 - Vickers
Density:
6.318 g/cm3 (Measured)    6.421 g/cm3 (Calculated)
Comment:
Measured on synthetic material

Optical Data of BalkaniteHide

Anisotropism:
Strong
Reflectivity:
440nmR1=35.4%R2= 30.6%
460nmR1=35.6%R2= 31.0%
480nmR1=35.4%R2= 31.0%
500nmR1=35.0%R2= 30.2%
520nmR1=34.0%R2= 28.9%
540nmR1=34.0%R2= 28.0%
560nmR1=33.4%R2= 27.2%
580nmR1=32.8%R2= 26.5%
600nmR1=32.4%R2= 26.0%
620nmR1=32.1%R2= 25.6%
640nmR1=31.8%R2= 25.1%
660nmR1=31.5%R2= 24.9%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 35.6%.
R1 shown in black, R2 shown in red
Colour in reflected light:
White-grey

Chemical Properties of BalkaniteHide

Formula:
Cu9Ag5HgS8

alternatively (Cu9−xMe2+x)Ag5−xHgS8 (x = 0.3) (Biagioni & Bindi, 2017)
IMA Formula:
Ag5Cu9HgS8
Elements listed:
Ag, Cu, Hg, S - search for minerals with similar chemistry

Crystallography of BalkaniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/m
Setting:
P2/m
Cell Parameters:
a = 9.5539(11) Å, b = 3.9150(4) Å, c = 10.6424(12) Å
β = 90.047(9)°
Ratio:
a:b:c = 2.44 : 1 : 2.718
Unit Cell V:
398.06 ų
Morphology:
Rod-like prismatic crystals.
Twinning:
Lamellar in several directions
Comment:
Pseudo-orthorhombic. Originall assumed to be orthorhombic, with space group P222, Pmm2 or Pmmm.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.09 Å(7)
2.98 Å(10)
2.61 Å(8)
2.55 Å(10)
2.45 Å(8)
1.985 Å(8)
1.955 Å(9)
Comments:
Sedmochislenitsi deposit, Bulgaria.

Type Occurrence of BalkaniteHide

Type Locality:
ⓘ Sedmochislenitsi Mine (Sedmocislenici Mine), Balkan Mts (Stara Planina), Vratsa Province, Bulgaria
Place of Conservation of Type Material:
Mineralogical Museum of the Higher Institute of Mining and Geology, 619; Museum of the University of Sofia “Kliment Ohridsky”, Sofia, 1351; National Museum of Natural History, Sofia, Bulgaria, 2339.
Geological Setting of Type Material:
High-grade copper ores in stratiform deposit.

Synonyms of BalkaniteHide

Other Language Names for BalkaniteHide

German:Balkanit
Simplified Chinese:硫汞铜银矿
Spanish:Balkanita

Common AssociatesHide

Related Minerals - Nickel-Strunz GroupingHide

2.BD.UM2004-33-S:AgCuHgSe(Ag,Cu)8Hg3(S,Se)7
2.BD.05ImiteriteAg2HgS2Mon.
2.BD.10GortdrumiteCu24Fe2Hg9S23Tric. 1 : P1
2.BD.15Danielsite(Cu,Ag)14HgS8Orth.
2.BD.20DonharrisiteNi3HgS3Mon. 2/m : B2/m
2.BD.25CarliniteTl2STrig. 3 : R3
2.BD.30BukoviteTl2(Cu,Fe)4Se4Tet.
2.BD.30MurunskiteK2(Cu,Fe)4S4Tet.
2.BD.30ThalcusiteTl2Cu3FeS4Tet.
2.BD.35Rohaite(Tl,Pb,K)2Cu8.7Sb2S4Orth.
2.BD.40ChalcothalliteTl2(Cu,Fe)6SbS4Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
2.BD.45SabatieriteCu6TlSe4Orth.
2.BD.50CrookesiteCu7(Tl, Ag)Se4Tet.
2.BD.55BrodtkorbiteCu2HgSe2Mon. 2/m : P21/m

Related Minerals - Dana Grouping (8th Ed.)Hide

2.16.7.2Danielsite(Cu,Ag)14HgS8Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.5.1CinnabarHgSTrig. 3 2 : P31 2 1
3.5.2HypercinnabarHgSHex.
3.5.3MetacinnabarHgSIso. 4 3m : F4 3m
3.5.4ImiteriteAg2HgS2Mon.
3.5.5TiemanniteHgSeIso. 4 3m : F4 3m
3.5.7Danielsite(Cu,Ag)14HgS8Orth.
3.5.8ColoradoiteHgTeIso. m3m (4/m 3 2/m)
3.5.9GortdrumiteCu24Fe2Hg9S23Tric. 1 : P1
3.5.10Polhemusite(Zn,Hg)STet.
3.5.11CarliniteTl2STrig. 3 : R3
3.5.12CrookesiteCu7(Tl, Ag)Se4Tet.
3.5.13SabatieriteCu6TlSe4Orth.
3.5.14PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
3.5.15RaguiniteTlFeS2Orth.
3.5.16ThalcusiteTl2Cu3FeS4Tet.
3.5.17BukoviteTl2(Cu,Fe)4Se4Tet.
3.5.18GalliteCuGaS2Tet. 4 2m : I4 2d
3.5.19RoquesiteCuInS2Tet. 4 2m : I4 2d
3.5.20InditeFeIn2S4Iso. m3m (4/m 3 2/m) : Fd3m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BalkaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Atanassov, V.A., Kirov, G.N. (1973): Balkanite, Cu9Ag5HgS8, a new mineral from the Sedmochislenitsi mine, Bulgaria. American Mineralogist: 58: 11-15.
Biagioni C., Bindi, L. (2017): Ordered distribution of Cu and Ag in the crystal structure of balkanite, Cu9Ag5HgS8. European Journal of Mineralogy: 29, 279-285.

Internet Links for BalkaniteHide

Localities for BalkaniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Salzburg
    • Zell am See District
      • Leogang
        • Hütten
          • Schwarzleograben
            • Schwarzleo mining district
Paar, W. H. & Chen, T. T. (1985): Zur Mineralogie von Cu-Ni(Co)-Pb-Ag-Hg-Erzen im Revier Schwarzleo bei Leogang, Salzburg, Österreich. Mitt. österr. geol. Ges. 78, 125-148.; A. Strasser: Die Minerale Salzburgs (1989)
  • Tyrol
    • Kitzbühel District
      • Oberndorf in Tirol
Steiner, M., Vavtar, F., Tropper, P. (2008): Rare Ag ores (danielsite, balkanite) from the fahlore deposit of the Röhrerbühel (N-Tyrol, Austria). Poster, Annual Meeting of the DMG, Berlin, Germany, September 14-17, 2008; CD with abstracts, Abs. no. 292; Steiner M., Vavtar F., Tropper P., Kaindl R. (2009): Silbererze (Balkanit und Danielsit) in den Fahlerzen von Röhrerbühel. In: Oeggl K., Prast M. (Hrsg.), Die Geschichte des Bergbaus in Tirol und seinen angrenzenden Gebieten. Proceedings zum 3. Milestone-Meeting des SFB-HiMAT vom 23.–26. 10. 2008 in Silbertal, Innsbruck, 193-195; Steiner, M., Tropper, P., Vavtar, F., Kaindl, R. & Krismer, M. (2010): Balkanite from the Cu ore deposit Röhrerbühel, Kitzbühel (N-Tyrol, Austria). N. Jb. Mineral. Abh. 187, 207-215.
Belgium
 
  • Wallonia
    • Luxembourg
      • Vielsalm
        • Salmchâteau
http://perso.infonie.be/jose.dehove/photos/Salmchateau.htm
Bulgaria (TL)
 
  • Vratsa Province
    • Balkan Mts (Stara Planina)
Atanassov, V.A. and Kirov, G.N. (1973): Balkanite, Cu9Ag5HgS8, a new mineral from the Sedmochislenitsi mine, Bulgaria. American Mineralogist, 58, 11-15.; ATANASSOVA, S. THE PRESERVED MINERAL DIVERSITY OF SEDMOCHISLENITSI DEPOSIT, VRATSA ORE REGION.; Svetla Atanassova, The Preserved Mineral Diversity of Sedmochislenitsi Deposit, Vratsa Ore Region. pp 207-216
China
 
  • Guangxi
    • Baise
      • Leye Co.
Lin Niu (1994): Geology and Prospecting 30(3), 1-8
Italy
 
  • Sardinia
    • South Sardinia Province
      • Iglesias
        • Punta della Torre
Orlandi, P. & Campostrini, I. (2005): Zibaldone. Aggiornamenti di mineralogia italiana 2004. Rivista Mineralogica Italiana, 3/2005, 184-191.
Mexico
 
  • Sonora
Handbook of Mineralogy
    • Naco Municipality
      • Cerro Morita
Handbook of Mineralogy
Russia
 
  • Chelyabinsk Oblast
Zaykov, V. V., Melekestseva, I. Y., Zaykova, E. V., Kotlyarov, V. A., & Kraynev, Y. D. (2017). Gold and platinum group minerals in placers of the South Urals: Composition, microinclusions of ore minerals and primary sources. Ore Geology Reviews, 85, 299-320.
  • Zabaykalsky Krai
    • Kodar–Udokan ore district
      • Udokan
Novoselov, K., Belogub, E., Palenova, E., Blinov, I. (2020): Silver minerals in the Unkur sandstone-hosted Cu deposit (Transbaikalia region, Russia). Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry (online). https://doi.org/10.1127/njma/2020/0192
USA
 
  • Nevada
    • Nye Co.
      • Toquima Range
NBMG Spec. Pub. 31 Minerals of Nevada
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