Blixite Mineral Data

General Blixite Information

Chemical Formula:

Pb8O5(OH)2Cl4

Composition:

Molecular Weight = 1,873.18 gm

Calcium 0.17 % Ca 0.24 % CaO

Hydrogen 0.09 % H 0.79 % H₂O

Lead 86.28 % Pb 92.94 % PbO

Chlorine 7.72 % Cl 7.72 % Cl

- % Cl -1.74 % -O=Cl₂

Oxygen 5.74 % O

______ ______

100.00 % 99.95 % = TOTAL OXIDE

Empirical Formula:

4(Pb_1.95)4(Ca_0.02)4(O_1.27)4(OH)_0.414(Cl_1.02)

IMA Status:

Valid Species (Pre-IMA) 1958

Locality:

Langan, Varmland, Sweden, in the Amerika stope. Link to MinDat.org Location Data.

Name Origin:

Named for Ragner Blix (1898-), Chemist, Swedish Museum of Natural History.

Name Pronunciation:

Blixite

Synonym:

ICSD 200211 with F

PDF 12-542

Blixite Image

Images:

Blixite

Comments: Pale yellow crystalline blixite on dark matrix.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Blixite Crystallography

Axial Ratios:

a:b:c =4.4673:1:3.8962

Cell Dimensions:

a = 26.069, b = 5.8354, c = 22.736, Z = 8; beta = 102.612° V = 3,375.22 Den(Calc)= 7.37

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 2.93(1), 1.66(0.8), 3.88(0.8),

Physical Properties of Blixite

Cleavage:

{???} Good

Color:

Light green, Light yellow, Orange.

Density:

7.35

Hardness:

3 - Calcite

Luster:

Vitreous - Dull

Streak:

light yellow

Optical Properties of Blixite

Gladstone-Dale:

CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.01 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1526,KPDmeas= 0.1531,KC= 0.1512
Ncalc = 2.11

Optical Data:

Biaxial (+), a=2.05, g=2.2, bire=0.1500, 2V(Meas)=80.

Calculated Properties of Blixite

Electron Density:

Bulk Density (Electron Density)=6.03 gm/cc
note: Specific Gravity of Blixite =7.37 gm/cc.

Fermion Index:

Fermion Index = 0.19
Boson Index = 0.81

Photoelectric:

PE_Blixite=1,620.13 barns/electron
U=PE_Blixite x rElectron Density=9,765.04 barns/cc.

Radioactivity:

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

Blixite Classification

Dana Class:

10.02.04.01 (10)Oxyhalides and Hydroxyhalides

(10.02)where A (O,OH) Xq

(10.02.04)Dana Group

10.02.04.01 Blixite Pb8O5(OH)2Cl4 C 2/c 2/m

Strunz Class:

03.DC.50 03 - HALIDES

03.D - Oxyhalides, Hydroxyhalides and Related Double Halides

03.DC -With Pb (As,Sb,Bi), without Cu

03.DC.50 Blixite Pb8O5(OH)2Cl4 C 2/c 2/m

Other Blixite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8, AmMin, v91, p1950) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Blixite :
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 - Scandinavian mineral gallery

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

Blixite

Pb8O5(OH)2Cl4
Dana No: 10.02.04.01 Strunz No: 03.DC.50
Locality:

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