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Barysilite

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About BarysiliteHide

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.


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:
6 photos of Barysilite associated with AndraditeCa3Fe3+2(SiO4)3
4 photos of Barysilite associated with SvabiteCa5(AsO4)3F
4 photos of Barysilite associated with CalciteCaCO3
4 photos of Barysilite associated with NasonitePb6Ca4(Si2O7)3Cl2
3 photos of Barysilite associated with MagnetiteFe2+Fe3+2O4
2 photos of Barysilite associated with Axinite-(Mn)-Tinzenite Series
2 photos of Barysilite associated with BaryteBaSO4
1 photo of Barysilite associated with Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
1 photo of Barysilite associated with Hereroite[Pb32(O,☐)21](AsO4)2[(Si,As,V,Mo]O4)2Cl10
1 photo of Barysilite associated with Vladkrivovichevite[Pb32O18][Pb4Mn2O]Cl14(BO3)8·2H2O

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)8O2(CO3)3] · H2OMon. 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. 2 2 2 : C2 2 21
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)
Sjögren, A. and Lundström, C.H. (1888): Om barysilit, ett förr ej uppmärksammat mineral från Harstigen. Öfversigt af Kungl. Vetenskapsakademiens Handlingar, 45, 7-10. (in Swedish)
Shannon, E.V. and Berman, H. (1926): Barysilite from Franklin Furnace, New Jersey. Am. Mineral., 11, 130-132.
Glasser, F.P. (1964): New data on barysilite. Am. Mineral., 49, 1485-1488.
Lajzérowicz, J. (1965): Étude par diffraction des rayons X et absorption infra-rouge de la barysilite, MnPb8.3Si2O7, et de composés isomorphes. Acta Crystallogr., 20, 357-363. (in French)
Ito, J. and Frondel, C. (1967): Syntheses of lead silicates: larsenite, barysilite, and related phases. Am. Mineral., 52, 1077-1084.
Billhardt, H.W. (1969): Synthesis of lead pyrosilicate and other barysilite-like compounds. Am. Mineral., 54, 510-521.
Bordeaux, D. and Lajzérowicz, J. (1969): Synthèse de la barysilite Pb3Si2O7. Bull. Soc. Fr. Minéral. Cristallogr., 92, 383-385. (in French)
American Mineralogist (1969): 54: 510-521.
Petter, W. and Harnik, A.B. (1971): Der Strukturtyp des Barysilit, XY2(Pb2Si2O7)3. Fortschr. Mineral., 49, 39-40. (in German)
Petter, W., Harnik, A.B. and Keppler, U. (1971): Die Kristallstruktur von Blei-Barysilit, Pb3Si2O7. Z. Kristallogr., 133, 445-458. (in German)
Harnik, A.B. (1972): Structural chemistry of barysilite-type compounds XY2(Pb2Si2O7)3. Am. Mineral., 57, 277-281.
Schmidt, U., Breuer, K.H. and Eysel, W. (1982): Kristallchemie der Barysilite. Z. Kristallogr., 159, 111-113. (in German)
Schmidt, U., Breuer, K.H. and Eysel, W. (1983) Crystal chemistry of barysilite-type compounds. Neues Jahrb. Mineral., Monatsh., 1983, 227-235.
Dunn, P.J. (1985): The lead silicates from Franklin, New Jersey: occurrence and composition. Mineral. Mag., 49, 721-727.
Yeates, H. (1991): The lead silicate minerals of Franklin, New Jersey: An SEM survey. Mineral. Rec., 22, 273-278.
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
    • Goslar
      • Clausthal-Zellerfeld
        • Oberschulenberg
No reference listed
Namibia
 
  • Otjozondjupa Region
    • Grootfontein
      • Kombat
Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
Sweden
 
  • Dalarna County
    • Hedemora
      • Garpenberg
U. Kolitsch and D. Holtstam (2002): Barysilite from Garpenberg Norra, Dalarna, Sweden: occurrence and crystal structure refinement. Mineralogical Magazine 66, 353-363.
  • Örebro County
    • Hällefors
      • Grythyttan
Ulf Nyberg collection and photo. Specimen number 2653
  • Värmland County
    • 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 ore district
        • Pajsberg
Öfvers. KVA handl.(1888) 45, 7-10; Nysten, P. (1984): Kleinod des Nordens - Harstigen in Schweden. Magma 2/1984, 12-30.
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.
 
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