Blixite Mineral Data

Blixite Mineral Data +

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General Blixite Information

Chemical Formula:

Pb2Cl(O,OH)2

Composition:

Molecular Weight = 482.86 gm

Hydrogen 0.21 % H 1.87 % H₂O

Lead 85.82 % Pb 92.45 % PbO

Chlorine 7.34 % Cl 7.34 % Cl

- % Cl -1.66 % -O=Cl₂

Oxygen 6.63 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb₂ClO(OH)

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.

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 =1.0242:1:4.4731

Cell Dimensions:

a = 5.832, b = 5.694, c = 25.47, Z = 8; V = 845.79 Den(Calc)= 7.58

Crystal System:

OrthorhombicSpace Group: Unk

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

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

Crystal Structure:

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Krivovichev S V , Burns P C , The Canadian Mineralogist , 44 (2006) p.515-522, The crystal structure of Pb8O5(OH)2Cl4, a synthetic analogue of blixite?, Locality: synthetic

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= -0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1484,KPDmeas= 0.1531,KC= 0.1525

Optical Data:

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

Calculated Properties of Blixite

Electron Density:

r_electron=6.03 gm/cc
note: r_Blixite=7.35 gm/cc.

Fermion Index

Fermion Index = 0.18969
Boson Index = 0.81031

Photoelectric:

PE_Blixite=1,606.99 barns/electron
U=PE_Blixite x r_electron=9,686.70 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Blixite is Not Radioactive

Blixite Classification

Dana Class:

10.2.4.1 (10)Oxyhalides and Hydroxyhalides

(10.2)where A (O,OH) Xq

(10.2.4)Dana Group

10.2.4.1 Blixite Pb2Cl(O,OH)2 Unk Ortho

Strunz Class:

III/D.11-30 III - Halogenides

III/D - Oxi-halogenides with Pb - Bi - Sb and related compounds

III/D.11 - Mendipite - Onoratoite series

III/D.11-10 Mendipite Pb3Cl2O2 P 2₁2₁2₁ 2 2 2

III/D.11-15 Damaraite Pb3O2(OH)Cl Pmc2 mm2

III/D.11-17 Chubutite* Pb7O6Cl2 Unk Ortho

III/D.11-20 Penfieldite Pb2Cl3(OH) P 6/mmm 6/m 2/m 2/m

III/D.11-30 Blixite Pb2Cl(O,OH)2 Unk Ortho

III/D.11-35 Mereheadite! Pb2O(OH)Cl C 2/c 2/m

III/D.11-40 Sundiusite Pb10(SO4)Cl2O8 C 2,Cm,C 2/m Mono

III/D.11-50 Asisite Pb12(SiO4)O8Cl4 I 4/mmm 4/m 2/m 2/m

III/D.11-55 Parkinsonite (Pb,Mo,[])8O8Cl2 I 4/mmm 4/m 2/m 2/m

III/D.11-60 Thorikosite Pb3(Sb,As)O3(OH)Cl2 I 4/mmm 4/m 2/m 2/m

III/D.11-65 Philolithite! Pb12O6Mn(Mg,Mn)2(Mn,Mg)4(SO4)(CO3)4Cl4(OH)12 P 4₁/nnm 4/m 2/m 2/m

III/D.11-70 Pinalite Pb3(WO4)OCl2 Amam 2/m 2/m 2/m

III/D.11-80 Nadorite PbSbO2Cl Bmmb 2/m 2/m 2/m

III/D.11-90 Perite PbBiO2Cl Bmmb 2/m 2/m 2/m

III/D.11-100 Heliophyllite Pb6As2O7Cl4 Unk Ortho

III/D.11-110 Ecdemite Pb6As2O7Cl4 Unk Tetra

III/D.11-120 Onoratoite Sb8O11Cl2 C 2/m 2/m

Other Blixite Information

References:

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

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Blixite

Pb2Cl(O,OH)2
Dana No: 10.2.4.1 Strunz No: III/D.11-30
Locality:

Notes: