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Barysilite

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Formula:
Pb8Mn2+[Si2O7]3
Colour:
White
Hardness:
3
Crystal System:
Trigonal
Name:
Named in 1888 by Stens Anders Hjalmar Sjögren and Carl Herman Lundström from the Greek βαρυζ for "heavy" in allusion to its density and λιθοζ for its containing SILicon.
This page provides mineralogical data about Barysilite.


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Classification of BarysiliteHide

Approved, 'Grandfathered' (first described prior to 1959)
9.BC.20

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
55.2.3.1

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
14.13.8

14 : Silicates not Containing Aluminum
13 : Silicates of Pb

Pronounciation of BarysiliteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of BarysiliteHide

Colour:
White
Hardness:

Optical Data of BarysiliteHide

Type:
Uniaxial (-)
RI values:
nω = 2.033 nε = 2.015
Max Birefringence:
δ = 0.018
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of BarysiliteHide

Formula:
Pb8Mn2+[Si2O7]3
IMA Formula:
Pb8Mn(Si2O7)3
Common Impurities:
Al,Fe,Zn,Mg,Ca

Crystallography of BarysiliteHide

Crystal System:
Trigonal
Cell Parameters:
a = 9.8 Å, c = 38.35 Å
Ratio:
a:c = 1 : 3.913
Unit Cell V:
3,189.69 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of BarysiliteHide

Synonyms of BarysiliteHide

Other Language Names for BarysiliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Andradite6 photos of Barysilite associated with Andradite on mindat.org.
Svabite4 photos of Barysilite associated with Svabite on mindat.org.
Calcite4 photos of Barysilite associated with Calcite on mindat.org.
Nasonite4 photos of Barysilite associated with Nasonite on mindat.org.
Magnetite3 photos of Barysilite associated with Magnetite on mindat.org.
Axinite-(Mn)-Tinzenite Series2 photos of Barysilite associated with Axinite-(Mn)-Tinzenite Series on mindat.org.
Baryte2 photos of Barysilite associated with Baryte on mindat.org.
Axinite-(Mn)1 photo of Barysilite associated with Axinite-(Mn) on mindat.org.
Hereroite1 photo of Barysilite associated with Hereroite on mindat.org.
Vladkrivovichevite1 photo of Barysilite associated with Vladkrivovichevite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.BC.05GittinsiteCaZrSi2O7Mon.
9.BC.05Keiviite-(Y)Y2Si2O7
9.BC.05Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
9.BC.05ThortveititeSc2Si2O7Mon.
9.BC.05Yttrialite-(Y)(Y,Th)2Si2O7
9.BC.10Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
9.BC.10KhibinskiteK2ZrSi2O7Mon.
9.BC.10ParakeldyshiteNa2ZrSi2O7Tric.
9.BC.15RankiniteCa3Si2O7Mon. 2/m : P21/b
9.BC.25Edgarbaileyite(Hg-Hg)3Si2O7Mon.
9.BC.30KristianseniteCa2ScSn(Si2O7)(Si2O6OH)Tric. 1
9.BC.35Percleveite-(Ce)(Ce,La,Nd)2Si2O7Tet. 4

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.13.1AlamositePbSiO3Mon.
14.13.2PlumbotsumitePb13(CO3)6(Si10O27) · 3H2OOrth.
14.13.3LuddeniteCu2Pb2Si5O14 · 4H2OMon.
14.13.4MolybdophyllitePb8Mg9[Si10O28(OH)8|O2|(CO3)3] · H2O Mon. 2 : B2
14.13.5MargarosanitePb(Ca,Mn2+)2(Si3O9)Tric. 1 : P1
14.13.6GanomalitePb9Ca5Mn(Si2O7)4(SiO4)OHex.
14.13.7KentrolitePb2Mn3+2(Si2O7)O2Orth. mmm (2/m 2/m 2/m) : Pbcm
14.13.9MelanotekitePb2Fe3+2(Si2O7)O2Orth.
14.13.10CreaseyitePb2Cu2Fe3+2(Si4.67Al0.33)O15.33(OH)3 · H2OOrth. mmm (2/m 2/m 2/m) : Cmcm

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 BarysiliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1969): 54: 510-521.
Acta Crystallographica: 20: 357-363.
Kolitsch, U. and Holtstam, D. (2002) Barysilite from Garpenberg Norra, Dalarna, Sweden: occurrence and crystal structure refinement. Mineralogical Magazine: 66: 353-363.

Internet Links for BarysiliteHide

Localities for BarysiliteHide

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.
Germany
 
  • Lower Saxony
    • Harz
      • Clausthal-Zellerfeld
        • Bockswies veins
          • Oberschulenberg
No reference listed
Namibia
 
  • Otjozondjupa Region
    • Grootfontein District
      • Kombat
Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
Sweden
 
  • Dalarna
    • Hedemora
      • Garpenberg
U. Kolitsch and D. Holtstam (2002): Barysilite from Garpenberg Norra, Dalarna, Sweden: occurrence and crystal structure refinement. Mineralogical Magazine 66, 353-363.
  • 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. ; K:Gatedal
      • Nordmark district
        • Jakobsberg ore field
No reference listed
      • Persberg district
        • Pajsberg
Öfvers. KVA handl.(1888) 45, 7-10; Nysten, P. (1984): Kleinod des Nordens - Harstigen in Schweden. Magma 2/1984, 12-30.
  • Västmanland
    • Hällefors
      • Grythyttan
Ulf Nyberg collection and photo. Specimen number 2653
USA
 
  • Nevada
    • Nye Co.
      • Toquima Range
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Palache(1935):92; Dunn(1995):Pt3:409.
Palache(1935):92; Dunn(1995):Pt3:409.
Mineral and/or Locality  
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