Beaverite Mineral Data

General Beaverite Information

Chemical Formula:

PbCu++(Fe+++,Al)2(SO4)2(OH)6

Composition:

Molecular Weight = 662.18 gm

Aluminum 2.04 % Al 3.85 % Al₂O₃

Iron 12.65 % Fe 18.09 % Fe₂O₃

Copper 9.60 % Cu 12.01 % CuO

Hydrogen 0.91 % H 8.16 % H₂O

Lead 31.29 % Pb 33.71 % PbO

Sulfur 9.69 % S 24.18 % SO₃

Oxygen 33.83 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

PbCuFe³⁺_1.5Al_0.5(SO₄)₂(OH)₆

Environment:

Secondary mineral in the oxidized zone of Pb-Cu deposits.

IMA Status:

Valid Species (Pre-IMA) 1911

Locality:

Horn Silver mine, Beaver County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Beaverite + Pronunciation

Synonym:

ICSD 67682

PDF 17-476

Beaverite Image

Images:

Beaverite Mottramite

Comments: Specimen of quartz with a thick druse of green mottramite (cuprodescloizite) crystals and a scattered grouping of micro beaverite crystals (lemon yellow in color).
Location: Tsumeb Mine, Tsumeb, Namibia. Scale: 3.3 x 2.5 cm.
© John Veevaert

Images:

Beaverite

Comments: Yellow earthy coating of beaverite.
Location: Hornsilver Mine, Frisco, Beaver County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Beaverite Crystallography

Axial Ratios:

a:c = 1:2.35179

Cell Dimensions:

a = 7.203, c = 16.94, Z = 3; V = 761.15 Den(Calc)= 4.33

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): 5.85(1), 3.03(0.95), 2.276(0.45),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Breidenstein B , Schluter J , Gebhard G , Neues Jahrbuch fur Mineralogie, Monatshefte , 1992 (1992) p.213-220, On beaverite: new occurrence, chemical data and crystal structure, Locality: Grand Reef mine, Graham County, Arizona, USA

Physical Properties of Beaverite

Color:

Yellow.

Density:

4.36

Diaphaneity:

Transparent to Translucent

Hardness:

3.5-4.5 - Between Copper Penny and Fluorite-Apatite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

light yellow

Optical Properties of Beaverite

Gladstone-Dale:

CI meas= 0.04 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.034 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.194,KPDmeas= 0.1927,KC= 0.2007
Ncalc = 1.87 - 1.88

Optical Data:

Uniaxial (-), e=1.83, w=1.85, bire=0.0200.

Calculated Properties of Beaverite

Electron Density:

Bulk Density (Electron Density)=4.01 gm/cc
note: Specific Gravity of Beaverite =4.33 gm/cc.

Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Photoelectric:

PE_Beaverite= 527.94 barns/electron
U=PE_Beaverite x rElectron Density=2,116.22 barns/cc.

Radioactivity:

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

Beaverite Classification

Dana Class:

30.02.05.07 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.02)where (A B)2 XO4 Zq

(30.02.05)Alunite Group (Jarosite Subgroup)

30.02.05.01 Jarosite KFe3(SO4)2(OH)6 R 3 3

30.02.05.02 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m

30.02.05.03 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m

30.02.05.04 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m

30.02.05.05 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m

30.02.05.06 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m

30.02.05.07 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m

30.02.05.08 Dorallcharite (Tl,K)Fe3(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 Beaverite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Beaverite :
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

Search for Beaverite using:

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

Visit our Advertisers for Beaverite :

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

Ask about Beaverite 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 Beaverite Specimen Label here :

Beaverite

PbCu++(Fe+++,Al)2(SO4)2(OH)6
Dana No: 30.02.05.07 Strunz No: 07.BC.10
Locality:

Notes: