Plumbophyllite Mineral Data

General Plumbophyllite Information

Chemical Formula:

Pb2Si4O10•H2O

Composition:

Molecular Weight = 704.75 gm

Silicon 15.94 % Si 34.10 % SiO₂

Hydrogen 0.29 % H 2.56 % H₂O

Lead 58.80 % Pb 63.34 % PbO

Oxygen 24.97 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb₂Si₄O₁₀•(H₂O)

Environment:

New structure type

IMA Status:

Proposed IMA 2008

Locality:

Blue Bell claims in the Soda Mountains, San Bernardino County, California, U.S.A. Link to MinDat.org Location Data.

Name Origin:

Named from the Greek for the morphology and composition.

Synonym:

IMA2008-025

Plumbophyllite Image

Images:

Plumbophyllite

Comments: Light blue, compact, radial, thin platy crystals of plumbophyllite in matrix.
Location: Blue Bell Claims, San Bernardino Co., California, USA. Scale: Specimen size 3 x 2.5 x 2 cm.
© Tom Loomis / Dakota Matrix

Plumbophyllite Crystallography

Axial Ratios:

a:b:c =1.3501:1:0.8846

Cell Dimensions:

a = 13.2083, b = 9.7832, c = 8.6545, V = 1,118.33

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bcn

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

By Intensity(I/I_o): 3.623(1), 7.883(0.97), 2.938(0.57),2.555(0.51), 2.243(0.5), 3.166(0.45), 4.897(0.38), 6.625(0.35),

Physical Properties of Plumbophyllite

Color:

Lght blue.

Diaphaneity:

Transparent

Luster:

Vitreous - Pearly

Optical Properties of Plumbophyllite

Optical Data:

Calculated Properties of Plumbophyllite

Fermion Index:

Fermion Index = 0.13
Boson Index = 0.87

Photoelectric:

PE_{Plumbophyllite}=1,026.74 barns/electron
U=PE_{Plumbophyllite} x rElectron Density= . barns/cc.

Radioactivity:

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

Plumbophyllite Classification

Dana Class:

78.00.00.00 (78)Unclassified Silicate Minerals

(78.00)Without Dana Classification Numbers

(78.00.00)Silicate, Unclassified

78.00.00.00 Almbosite? Fe5Fe4V4Si3O27 Ortho ? Ortho

78.00.00.00 Chelyabinskite* (Ca,Mg)3Si(OH)6(SO4,CO3)2•9(H2O) Unk Ortho

78.00.00.00 Cryptophyllite K2Ca[Si4O10]•5H2O P 2₁/n 2/m

78.00.00.00 IMA2007-041T Na2[Ti4O2(OH)2(SiO4)3]•6H2O R 3m 3m

78.00.00.00 IMA2009-001 Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 R 3 3

78.00.00.00 Iddingsite? MgO.Fe2O3.3SiO2•4(H2O) Ortho

78.00.00.00 Ivanyukite-Cu Cu[Ti4(OH)2O2(SiO4)3]•7H2O P 4 3m 4 3m

78.00.00.00 Ivanyukite-K K2[Ti4(OH)2O2(SiO4)3]•9H2O P 4 3m 4 3m

78.00.00.00 Ivanyukite-Na Na2[Ti4O2(OH)2(SiO4)3]•6H2O P 4 3m 4 3m

78.00.00.00 Plumbophyllite Pb2Si4O10•H2O P bcn 2/m 2/m 2/m

78.00.00.00 Sturtite? (Fe3)(Mn2,Ca,Mg)Si4O10(OH)3•10(H2O) None

Strunz Class:

09.HX.00 09 - SILICATES (Germanates)

09.H - Unclassified Strunz Silicates

09.HX -Silicate, Unclassified

09.HX.00 Iddingsite? MgO.Fe2O3.3SiO2•4(H2O) Ortho

09.HX.00 IMA2007-041T Na2[Ti4O2(OH)2(SiO4)3]•6H2O R 3m 3m

09.HX.00 Plumbophyllite Pb2Si4O10•H2O P bcn 2/m 2/m 2/m

09.HX.00 Cryptophyllite K2Ca[Si4O10]•5H2O P 2₁/n 2/m

Other Plumbophyllite Information

See Also:

Links to other databases for Plumbophyllite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Ask about Plumbophyllite here :
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Print or Cut-and-Paste your Plumbophyllite Specimen Label here :

Plumbophyllite

Pb2Si4O10•H2O
Dana No: 78.00.00.00 Strunz No: 09.HX.00
Locality:

Notes: