Important Update News

The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.

We are grateful to NASA for the funding of this effort.

Polybasite R061052
Name: Polybasite
RRUFF ID: R061052
Ideal Chemistry: [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]
Locality: Elsa, Yukon Territory, Canada
Source: Royal Ontario Museum M52499 [view label]
Owner: RRUFF
Description: Metallic, iron-black with reddish hints; pseudohexagonal tabular crystals associated with hexagonal prisms of stephanite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Polybasite (6) ]
CHEMISTRY 
RRUFF ID: R061052.2
Sample Description: Microprobe Fragment
Measured Chemistry: Cu1.00Ag15.00Sb2.00S11.00
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
DOWNLOADS:

  To download sample data,
  please select a specific
  orientation angle.
Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R061052
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 1% of 150mW
DOWNLOADS:

Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R061052.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 26.203(2)Å    b: 15.133(2)Å    c: 23.895(3)Å
alpha: 90°    beta: 89.996(5)°    gamma: 90°   Volume: 9475(3)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
X Min:    X Max:    X Sort:
REFERENCES for Polybasite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Rose H (1829) Ueber die in der Natur vorkommenden nicht oxydirten Verbindungen des Antimons und des Arseniks. 2. Polybasit, eine neue Species, Annalen der Physik und Chemie, 15, 573-591   [view file]

Frondel C (1963) Isodimorphism of the polybasite and pearceite series, American Mineralogist, 48, 565-572   [view file]

Fleischer M (1965) New mineral names, American Mineralogist, 50, 1504-1508   [view file]

Harris D C, Nuffield E W, Frohberg M H (1965) Studies of mineral sulpho-salts: XIX-selenian polybasite, The Canadian Mineralogist, 8, 172-184   [view file]

Hall H T (1967) The pearceite and polybasite series, American Mineralogist, 52, 1311-1321   [view file]

Edenharter A, Koto K, Nowacki W (1971) Über pearceit, polybasit und binnit, Neues Jahrbuch für Mineralogie, Monatshefte, 1971, 337-341

Bailey S W (1977) Report of the I.M.A-I.U.Cr. Joint Committee on Nomenclature, American Mineralogist, 62, 411-415   [view file]

Ondruš P, Veselovský F, Gabašová A, Hloušek J, Šrein V, Vavrín I, Skála R, Sejkora J, Drábek M (2003) Primary minerals of the Jáchymov ore district, Journal of the Czech Geological Society, 48, 19-147   [view file]

Evain M, Bindi L, Menchetti S (2006) Structural compexity in minerals: twinning, polytypism and disorder in the crystal structure of polybasite, (Ag,Cu)16(Sb,As)2S11, Acta Crystallographica, B62, 447-456

Locock A J, Ercit T S, Kjellman J, Piilonen C (2006) New mineral names, American Mineralogist, 91, 1945-1954   [view file]

Bindi L, Evain M, Spry P G, Menchetti S (2007) The pearceite-polybasite group of minerals: crystal chemistry and new nomenclature rules, American Mineralogist, 92, 918-925   [view file]

Bindi L, Menchetti S (2009) Adding further complexity to the polybasite structure: The role of Ag in the B layer of the -M2a2b2c polytype, American Mineralogist, 94, 151-155   [view file]

Bindi L, Voudouris P, Spry P G (2013) Structural role of tellurium in the minerals of the pearceite-polybasite group, Mineralogical Magazine, 77, 419-428

Gill S B, Piercey S J, Layton-Matthews D (2016) Mineralogy and metal zoning of the Cambrian Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulfide (VMS) deposit, Newfoundland, The Canadian Mineralogist, 54, 1307-1344