Sverigeite Mineral Data

General Sverigeite Information

Chemical Formula:

NaMnMgSn++++Be2Si3O12(OH)

Composition:

Molecular Weight = 532.22 gm

Sodium 4.32 % Na 5.82 % Na₂O

Magnesium 4.57 % Mg 7.57 % MgO

Manganese 10.32 % Mn 13.33 % MnO

Beryllium 3.39 % Be 9.40 % BeO

Silicon 15.83 % Si 33.87 % SiO₂

Tin 22.30 % Sn 28.32 % SnO₂

Hydrogen 0.19 % H 1.69 % H₂O

Oxygen 39.08 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaMn²⁺MgSnBe₂(Si₃O₁₂)(OH)

Environment:

Found on a mine dump; possibly part of a vein assemblage.

IMA Status:

Approved IMA 1984

Locality:

Langban, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for the country where the mineral was found, Sweden, Sverige in Swedish.

Name Pronunciation:

Sverigeite + Pronunciation

Synonym:

ICSD 203151

PDF 38-392

Sverigeite Crystallography

Axial Ratios:

a:b:c =0.8148:1:0.5136

Cell Dimensions:

a = 10.815, b = 13.273, c = 6.818, Z = 4; V = 978.71 Den(Calc)= 3.61

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: I mma

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.884(1), 2.826(0.9), 5.77(0.7),

Physical Properties of Sverigeite

Cleavage:

{010} Perfect

Color:

Yellow.

Density:

3.6

Hardness:

6.5 - Pyrite

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Sverigeite

Gladstone-Dale:

CI meas= 0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1903,KPDmeas= 0.1908,KC= 0.1917
Ncalc = 1.69

Optical Data:

Biaxial (+), a=1.678, b=1.684, g=1.699, bire=0.0210, 2V(Calc)=66, 2V(Meas)=67.

Calculated Properties of Sverigeite

Electron Density:

Bulk Density (Electron Density)=3.42 gm/cc
note: Specific Gravity of Sverigeite =3.60 gm/cc.

Fermion Index:

Fermion Index = 0.08
Boson Index = 0.92

Photoelectric:

PE_Sverigeite= 68.13 barns/electron
U=PE_Sverigeite x rElectron Density= 233.19 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sverigeite is Not Radioactive

Sverigeite Classification

Dana Class:

51.02.02.01 (51)Nesosilicate Insular SiO4 Groups Only

(51.02)with cations in [4] as well as >[4]

(51.02.02)Dana Group

51.02.02.01 Sverigeite NaMnMgSnBe2Si3O12(OH) I mma 2/m 2/m 2/m

Strunz Class:

09.AE.15 09 - SILICATES (Germanates)

09.A - Nesosilicates

09.AE -Nesosilicates with additional (O,OH,F,H2O);

09.AE.15 Sverigeite NaMnMgSnBe2Si3O12(OH) I mma 2/m 2/m 2/m

Other Sverigeite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Sverigeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Sverigeite Specimen Label here :

Sverigeite

NaMnMgSn++++Be2Si3O12(OH)
Dana No: 51.02.02.01 Strunz No: 09.AE.15
Locality:

Notes:

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