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|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 Barysilite
|IMA status:||Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"|
|Strunz 8th edition ID:||8/C.06-10|
|Nickel-Strunz 10th (pending) edition ID:||9.BC.20|
9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral  and greater coordination
|Dana 8th edition ID:||22.214.171.124|
55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in  coordination
|Hey's CIM Ref.:||14.13.8|
14 : Silicates not Containing Aluminum
13 : Silicates of Pb
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Type Occurrence of Barysilite
|Type Locality:||Harstigen Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden|
|Year of Discovery:||1888|
Physical Properties of Barysilite
Crystallography of Barysilite
|Cell Parameters:||a = 9.8Å, c = 38.35Å|
|Ratio:||a:c = 1 : 3.913|
|Unit Cell Volume:||V 3,189.69 Å³ (Calculated from Unit Cell)|
|X-Ray Powder Diffraction:|
Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Optical Data of Barysilite
|RI values:||nω = 2.033 nε = 2.015|
|Maximum Birefringence:||δ = 0.018|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Surface Relief:||Very High|
Chemical Properties of Barysilite
|Simplified for copy/paste:||Pb8Mn2+[Si2O7]3|
|Essential elements:||Mn, O, Pb, Si|
|All elements listed in formula:||Mn, O, Pb, Si|
Relationship of Barysilite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Barysilite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Barysilite
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 Barysilite
Localities for Barysilite
The 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. ? 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.
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Locality Updated: Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Victoria, AustraliaFrom Peter Hall, 29th Jul 2014 22:43:03