Osarizawaite Mineral Data

General Osarizawaite Information

Chemical Formula:

PbCuAl2(SO4)2(OH)6

Composition:

Molecular Weight = 618.88 gm

Aluminum 8.72 % Al 16.48 % Al₂O₃

Copper 10.27 % Cu 11.56 % Cu₂O

Hydrogen 0.98 % H 8.73 % H₂O

Lead 33.48 % Pb 36.07 % PbO

Sulfur 10.36 % S 25.87 % SO₃

Oxygen 36.19 % O

______ ______

100.00 % 98.71 % = TOTAL OXIDE

Empirical Formula:

PbCuAl₂(SO₄)₂(OH)₆

Environment:

Secondary mineral. Aluminum analog of beaverite.

IMA Status:

Approved IMA 1961

Locality:

Osarizawa mine, Akita Prefecture, Japan. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Osarizawaite + Pronunciation

Synonym:

ICSD 100441

PDF 15-178

Osarizawaite Image

Images:

Osarizawaite

Comments: Light blue micro crystals of osarizawaite and minor azurite filling vugs.
Location: Silver Hill Mine, near Marana, Pinal Co. Arizona, USA. Scale: 3 x 2 cm.
© John Veevaert

Osarizawaite Crystallography

Axial Ratios:

a:c = 1:2.4468

Cell Dimensions:

a = 7.05, c = 17.25, Z = 3; V = 742.50 Den(Calc)= 4.15

Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

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

By Intensity(I/I_o): 3(1), 5.75(0.7), 3.52(0.6),

Physical Properties of Osarizawaite

Color:

Green.

Density:

4.037

Diaphaneity:

Transparent to Translucent

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Hardness:

3-4 - Calcite-Fluorite

Luster:

Earthy (Dull)

Streak:

light green

Optical Properties of Osarizawaite

Gladstone-Dale:

CI meas= 0.031 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.057 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1741,KPDmeas= 0.179,KC= 0.1846
Ncalc = 1.75 - 1.77

Optical Data:

Uniaxial (+), w=1.714, e=1.731, bire=0.0170.

Calculated Properties of Osarizawaite

Electron Density:

Bulk Density (Electron Density)=3.74 gm/cc
note: Specific Gravity of Osarizawaite =4.04 gm/cc.

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Osarizawaite= 559.77 barns/electron
U=PE_Osarizawaite x rElectron Density=2,095.92 barns/cc.

Radioactivity:

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

Osarizawaite Classification

Dana Class:

30.02.04.04 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.02)where (A B)2 XO4 Zq

(30.02.04)Alunite Group (Alunite Subgroup)

30.02.04.01 Alunite KAl3(SO4)2(OH)6 R 3m, R 3m Trig

30.02.04.02 Natroalunite NaAl3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.03 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m

30.02.04.04 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m

30.02.04.05 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.06 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.07 Walthierite Ba0.5Al3(SO4)2(OH)6 R 3m 3 2/m

30.02.04.08 Huangite Ca0.5Al3(SO4)2(OH)6 R 3m 3 2/m

Strunz Class:

07.BC.10 07 - SULFATES (SELENATES, TELLURATES)

07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O

07.BC -With medium-sized and large cations

07.BC.10 Alunite KAl3(SO4)2(OH)6 R 3m, R 3m Trig

07.BC.10 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m

07.BC.10 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Huangite Ca0.5Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Jarosite KFe3(SO4)2(OH)6 R 3 3

07.BC.10 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Natroalunite NaAl3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m

07.BC.10 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m

07.BC.10 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Walthierite Ba0.5Al3(SO4)2(OH)6 R 3m 3 2/m

Other Osarizawaite Information

References:

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

See Also:

Links to other databases for Osarizawaite :
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

Search for Osarizawaite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Osarizawaite :

A Bijoux Google Search for Osarizawaite
Adam's Minerals Google Search for Osarizawaite
Cape Minerals Google Search for Osarizawaite
Dakota Matrix Minerals Google Search for Osarizawaite
Excalibur Mineral Corp. Google Search for Osarizawaite
Exceptional Minerals Google Search for Osarizawaite
John Betts Fine Minerals Search for Osarizawaite
McDougall Minerals Google Search for Osarizawaite
Mineral News Website Link
Rock and Mineral Shows Google Search for Osarizawaite
Weinrich Minerals, Inc. Google Search for Osarizawaite

Ask about Osarizawaite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Osarizawaite

PbCuAl2(SO4)2(OH)6
Dana No: 30.02.04.04 Strunz No: 07.BC.10
Locality:

Notes: