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Betekhtinite

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Formula:
(Cu,Fe)21Pb2S15
System:
Orthorhombic
Colour:
Black
Lustre:
Metallic
Hardness:
3 - 3½
Name:
For Anatolii Georgievich Betekhtin (1897-1962), Russian mineralogist and economic geologist.
This page provides mineralogical data about Betekhtinite.


Classification of Betekhtinite

Approved, 'Grandfathered' (first described prior to 1959)
2.BE.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
E : With Pb (Bi)
2.16.8.1

2 : SULFIDES
16 : Miscellaneous
3.6.10

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

Physical Properties of Betekhtinite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Black
Streak:
Black
Hardness (Mohs):
3 - 3½
Cleavage:
Distinct/Good
In three directions
Density:
5.96 - 6.05 g/cm3 (Measured)    6.14 g/cm3 (Calculated)

Optical Data of Betekhtinite

Type:
Anisotropic
Anisotropism:
Strong, distinctly colored
Reflectivity:
400nmR1=34.0%R2= 35.4%
420nmR1=33.7%R2= 34.6%
440nmR1=33.4%R2= 33.8%
460nmR1=33.2%R2= 33.3%
480nmR1=32.9%R2= 33.0%
500nmR1=32.8%R2= 32.6%
520nmR1=32.6%R2= 32.3%
540nmR1=32.5%R2= 32.1%
560nmR1=32.3%R2= 32.0%
580nmR1=32.0%R2= 31.8%
600nmR1=31.8%R2= 31.8%
620nmR1=31.6%R2= 31.9%
640nmR1=31.4%R2= 32.2%
660nmR1=31.4%R2= 32.4%
680nmR1=31.2%R2= 32.4%
700nmR1=31.2%R2= 32.4%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 35.4%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Cream, stronger yellowish cream perpendicular to elongation

Chemical Properties of Betekhtinite

Formula:
(Cu,Fe)21Pb2S15
Idealised Formula:
Cu10(Fe,Pb)S6
Elements listed in formula:
Analytical Data:
Mansfeld, Germany.
Cu (61.39)
Pb (19.20)
Fe (1.83)
S (17.25)
Total (99.67)
Common Impurities:
Ag

Crystallography of Betekhtinite

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Immm
Space Group Setting:
Immm
Cell Parameters:
a = 14.67 Å, b = 22.80 Å, c = 3.85 Å
Ratio:
a:b:c = 0.643 : 1 : 0.169
Unit Cell Volume:
V 1,287.73 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Needles to 2 cm in length.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.08 (80)
2.93 (90)
2.35 (60)
2.01 (60)
1.946 (70)
1.832 (100)
1.766 (70)
Comments:
Dzhezkazgan, Kazakstan.

Type Occurrence of Betekhtinite

Place of Conservation of Type Material:
Mineral Museum, Humboldt University, Berlin, Germany
Geological Setting of Type Material:
Veins cutting shale.

Relationship of Betekhtinite to other Species

2.BE.10Furutobeite(Cu,Ag)6PbS4
2.BE.15RhodplumsiteRh3Pb2S2
2.BE.15ShanditeNi3Pb2S2
2.BE.20ParkeriteNi3Bi2S2
2.BE.25Schlemaite(Cu,◻)6(Pb,Bi)Se4
2.BE.30PašavaitePd3Pb2Te2
3.6.1Herzenbergite(Sn,Pb)SnS2
3.6.2Ottemannitebeta Sn2S3
3.6.3BerndtiteSnS2
3.6.4StistaiteSnSb
3.6.5GalenaPbS
3.6.6ClausthalitePbSe
3.6.7AltaitePbTe
3.6.8Furutobeite(Cu,Ag)6PbS4
3.6.9AschamalmitePb6Bi2S9
3.6.11Shadlunite(Pb,Cd)(Fe,Cu)8S8

Other Names for Betekhtinite

Other Information

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 Betekhtinite

Reference List:
A. Schüller & E. Wohlmann (1955): Betechtinit, ein neues Blei-Kupfer-Sulfid aus dem Mansfelder Rücken.- Geologie 4, 535-555.

American Mineralogist: 41: 371.

Dornberger-Schiff, K. von & E. Höhne (1959): Die Kristallstruktur des Betechtinit Pb2(Cu,Fe)21S15. Acta Crystallographica 12, 646–651 (in German).

Schüller, A. (1960): Zur Kenntnis des Betechtinit, (Cu, Fe)10PbS>6. Neues Jahrbuch für Mineralogie, Monatshefte, 121–131 (in German).

Internet Links for Betekhtinite

mindat.org URL:
https://www.mindat.org/min-650.html
Please feel free to link to this page.
Specimens:
The following Betekhtinite specimens are currently listed for sale on minfind.com.

Localities for Betekhtinite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Argentina
 
  • Chubut
    • Gastre Department
Brodtkorb (2002): Las Especies Minerales de la Republica Argentina; DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.
Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina); BRODTKORB, M.K. de y PAAR, W.. Angelaite in the paragenesis of Los Manantiales district, Chubut, Argentina: a new mineral species. Rev. Asoc. Geol. Argent. [online]. 2004, vol.59, n.4, pp. 787-78
  • Santa Cruz
    • Deseado department
      • Deseado massif
        • Tres Cerros
Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
Australia
 
  • Tasmania
    • West Coast municipality
      • Queenstown district
Bottrill, R. S. (2000). A Mineralogical Field Guide for the Western Tasmania Minerals and Museums Tour.
Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
Bottrill RS & Baker, WE (in prep) Catalogue of Minerals of Tasmania. Mineral Resources Tasmania
Austria
 
  • Salzburg
    • Abtenau
      • Webing
A. Strasser: Die Minerale Salzburgs (1989)
    • Saalfelden
      • Leogang
        • Hütten
          • Schwarzleograben
            • Schwarzleo 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)
Bulgaria
 
  • Burgas Oblast (Bourgas Oblast)
    • Malko Târnovo Obshtina
      • Malko Târnovo ore field
        • Byrdtseto Mo-Cu deposit (Byrdtse; Burdceto)
BONEV, I. (1986). Betekhtinite and Joseite-B from Propada deposit, Malko Tirnovo-Bourgas District. In Doklady Bolgarskoj akademii nauk (Vol. 39, No. 1, pp. 59-62). Izdatel'stvo na B lgarska akademiâ na naukite.
  • Pazardzhik Oblast (Pazardjik Oblast)
    • Panagyurishte (Panagurishte) Obshtina
      • Elshitsa
Bogdanov, K., Tsonev, D., and Kuzmanov, K. (1997): Mineralium Deposita 32, 219-229.
      • Levski
Kouzmanov, K. (2004). Galena-bearing myrmekitic intergrowths from the Radka deposit, Bulgaria: Origin and mechanisms of formation. Geochemistry, Mineralogy and Petrology, 41, 17-30.
  • Vratsa Oblast (Vratza)
    • Balkan Mts (Stara Planina)
ATANASSOVA, S. THE PRESERVED MINERAL DIVERSITY OF SEDMOCHISLENITSI DEPOSIT, VRATSA ORE REGION.
China
 
  • Guangdong Province
    • Meizhou Prefecture
      • Mei Co.
Binghui Chen, Rui Guo, and Shouyun Yu (1994): Geology and Prospecting 30(3), 20-25; Jinyan Yao (1994): Geology and Prospecting 30(4), 5-11
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Příbram
        • Vrančice
[Lapis 1995, 12, p.13-24]
  • Moravia (Mähren; Maehren)
    • Moravia-Silesia Region
      • Bruntál
FOJT B., ŠKODA R., DOLNÍČEK Z., Furutobeite and betekhtinite from the ore deposit Horní Benešov in the Nízký Jeseník Mts. - Czech republic Acta Musei Moraviae, Scientiae geologicae, Brno, Moravské zemské muzeum, 2010, 1211-8796.
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
    • Kipushi
Kampunzu, A.B., Cailteux, J.L.H., Kamona, A.F., Intiomale, M.M., and Melcher, F. (2009): Ore Geology Reviews 35, 263-297.; Chabu, M. (1995). The Geochemistry Of Phlogopite And Chlorite From The Kipushi Zn-Pb-Cu Deposit, Shaba, Zaire., Canadian Mineralogist 33, 547-558.
Germany
 
  • Hesse
    • Odenwald
      • Mühltal
        • Nieder-Ramstadt
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Waschenbach
Nickel, E., and Fettel, M. (1985): Odenwald. Sammlung geologischer Führer Vol. 65, 2nd ed., Bornträger (Berlin, Stuttgart), 231 pp.
  • Saxony-Anhalt
    • Mansfeld Basin
No reference listed
        • Volkstedt
A. Schüller & E. Wohlmann (1955): Betechtinit, ein neues Blei-Kupfer-Sulfid aus dem Mansfelder Rücken.- Geologie 4, 535-555
      • Siersleben
        • Hübitz
A. Schüller & E. Wohlmann (1955): Betechtinit, ein neues Blei-Kupfer-Sulfid aus dem Mansfelder Rücken.- Geologie 4, 535-555
Greece
 
  • Aegean Islands Department (Aiyaíon)
    • Kykládes Prefecture
      • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
        • Tinos Island
Economic Geology 102 (2007) 1269-1294.; Bonev, I. K., Petrunov, R., Cook, N. J., & Ciobanu, C. L. (2005). Kostovite and its argentian varieties: Deposits and mineral associations. Geochem. Mineral. Petrol.(Bulg. Acad. Sci.), 42, 1-22.
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
No reference listed
        • Plaka
          • Plaka Mines
No reference listed
Japan
 
  • Honshu Island
    • Tohoku Region
      • Yamagata Prefecture
Handbook of Mineralogy
Kazakhstan
 
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
    • Chu-Sarysu basin
      • Dzhezkazgan (Zhezqazghan)
[MinRec 23:279, 23:280, 21:492]; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
Pavlova, Z. N.; Nuralin, N. N.; Bakarasov, E. V.; Bakarasov, V. E. (1997): Mineralogy of the Shaman-​Aibat (Kazakhstan) cupriferous sandstone-​type copper ore deposit. Geologiya Kazakhstana 1997 (1), 65-74 (in Russian).
  • Pavlodar Province (Pavlodar Oblysy; Pavlodarskaya Oblast')
Baibatsha, A., Dyussembayeva, K., & Kassenova, A. (2015). Microparagenetic Associations of Gold in Ore-Forming Minerals from Deposits of Different Geological and Industrial Types of Kazakhstan. In Proceedings of the 11th International Congress for Applied Mineralogy (ICAM) (pp. 1-8). Springer International Publishing.
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
[MinRec 8:Tsumeb 20]
  • Otjozondjupa Region
    • Grootfontein District
      • Kombat
Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Legnica
      • Lubin District
        • Lubin
Harańczyk C. 1972: Mineralizacja kruszcowa dolnocechsztyńskich osadów euksenicznych monokliny przedsudeckiej. Arch. Miner. T.30, z. 1-2
      • Polkowice District
Banaś M., Kucha H., Salamon W. 1976: Występowanie niektórych metali towarzyszących w złożach rud miedzi na monoklinie przedsudeckiej. Prz. Geol. nr 5
Russia
 
  • Northern Caucasus Region
    • Karachaevo-Cherkesskaya Republic (Karachai-Cherkess Republic; Karachay-Cherkessia Republic)
http://maurice.strahlen.org/kavkaz/kavkaz.htm; Kachalovskaya, V. M. & Khromova, M. M. (1970): Betekhtinite, hessite, and stromeyerite in bornite ores of the Urup deposit. Geologiya Rudnykh Mestorozhdenii 12, 93-97 (in Russian).
Sweden
 
  • Värmland
    • Filipstad
Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
Switzerland
 
  • Glarus
    • Murg Valley
      • Mürtschenalp
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 76
Turkey
 
  • Black Sea Region
    • Giresun Province
Handbook of Mineralogy
UK
 
Tindle, A.G. (2008) Minerals of Britian and Ireland
    • Sutherland county (Sutherlandshire)
Gallagher, M.J. et al. (1974) Trans. Inst. Mining Metall. 83, B83. [M.A. 75-930.]; Livingstone, A. and Macpherson, H.G. (1983) Fifth supplementary list of British minerals (Scottish). Mineralogical Magazine, vol. 47, n° 342, p. 99-105.; Handbook of Mineralogy.
Ukraine
 
  • Zhytomyr Oblast' (Zhitomir Oblast')
Nechaev S & Pastukhov V (2001) Links between the Proterozoic anorthosite-rapakivigranite plutons and ore-forming events in the Ukrainian Shield (ores of titanium, uranium, rare metal and gold). in Abstracts – GEODE field workshop 8-12th July 2001 on ilmenite deposits in the Rogaland anorthosite province, S. Norway.
USA
 
  • Colorado
    • La Plata Co.
      • La Plata District (California District)
Minerals of Colorado (1997) Eckels, E. B.
  • Montana
    • Silver Bow Co.
      • Butte District (Summit Valley District)
        • Butte
Mineralogical Record 33:1
The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
Mineralogical Record 33:1
The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
The Mineralogy of The Butte District, Montana; Guilbert and Zeihen 1964
  • New Mexico
    • Sierra Co.
      • Chloride District
        • Chloride
Northrup, Minerals of New Mexico, 3rd Rev. Ed., 1996; P. Hlava & Irving (1985) 6th annual New Mexico Mineral Symposium; Foord, E. E., & Shawe, D. R. (1989). The Pb-Bi-Ag-Cu-(Hg) Chemistry Of Galena And Some Associated Sulfosalts: A Reviewand Some New Data From Colorado, California And Pennsylvania. Canadian Mineralogist, 27, 363-382.
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