Woodhouseite Mineral Data

Advertisment

General Woodhouseite Information

Chemical Formula:

CaAl3(PO4)(SO4)(OH)6

Composition:

Molecular Weight = 414.10 gm

Calcium 9.68 % Ca 13.54 % CaO

Aluminum 19.55 % Al 36.93 % Al₂O₃

Phosphorus 7.48 % P 17.14 % P₂O₅

Hydrogen 1.46 % H 13.05 % H₂O

Sulfur 7.74 % S 19.33 % SO₃

Oxygen 54.09 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaAl₃(PO₄)(SO₄)(OH)₆

Environment:

Found in vugs in quartz veins.

IMA Status:

Valid Species (Pre-IMA) 1937

Locality:

Champion mine, 4 miles WSW of White Mountain Peak, north of Laws, Mono Co., California. Link to MinDat.org Location Data.

Name Origin:

Named for Charles D. Woodhouse (1888-1975), U.S. mineral collector

Name Pronunciation:

Woodhouseite + Pronunciation

Synonym:

ICSD 100137

Kehoeite - quartz, gypsum and sphalerite

PDF 37-469

Woodhouseite Image

Images:

Woodhouseite

Comments: Crystals of woodhouseite to 0.5 cm across on an exposed quartz vein.
Location: Champion Mine, Inyo County, California, USA. Scale: Picture size 2 cm.
© John Veevaert

Woodhouseite Crystallography

Axial Ratios:

a:c = 1:2.33691

Cell Dimensions:

a = 6.975, c = 16.3, Z = 3; V = 686.76 Den(Calc)= 3.00

Crystal System:

Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m

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

By Intensity(I/I_o): 2.94(1), 1.89(0.94), 2.19(0.86),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 0 1 2) ( 0 0 1)

Warning: this java applet does not work in some browsers because of security restrictions.

Physical Properties of Woodhouseite

Cleavage:

{0001} Perfect

Color:

Colorless, White, Pink, Pale orange.

Density:

3.012

Diaphaneity:

Transparent to Translucent

Habit:

Pseudo Cubic - Crystals show a cubic outline.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

4.5 - Between Fluorite and Apatite

Luster:

Vitreous - Pearly

Streak:

white

Optical Properties of Woodhouseite

Gladstone-Dale:

CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2138,KPDmeas= 0.213,KC= 0.2149
Ncalc = 1.64 - 1.65

Optical Data:

Uniaxial (+), w=1.636, e=1.647, bire=0.0110.

Calculated Properties of Woodhouseite

Electron Density:

Bulk Density (Electron Density)=3.01 gm/cc
note: Specific Gravity of Woodhouseite =3.00 gm/cc.

Fermion Index:

Fermion Index = 0.0009732476
Boson Index = 0.9990267524

Photoelectric:

PE_Woodhouseite= 2.61 barns/electron
U=PE_Woodhouseite x rElectron Density= 7.85 barns/cc.

Radioactivity:

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

Woodhouseite Classification

Dana Class:

43.04.01.08 (43)Compound Phosphates, etc.

(43.04)(Anhydrous Compound Anions With Hydroxyl or Halogen)

(43.04.01)Beudantite Group

43.04.01.01 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m

43.04.01.02 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m

43.04.01.03 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m

43.04.01.04 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m

43.04.01.05 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m

43.04.01.06 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

43.04.01.07 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m

43.04.01.08 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

43.04.01.09 Weilerite BaAl3H[(As,P)O4]2(OH)6 R 3m 3 2/m

43.04.01.10 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m

Strunz Class:

08.BL.05 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1

08.BL.05 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m

08.BL.05 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m

08.BL.05 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m

08.BL.05 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m

08.BL.05 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m

08.BL.05 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m

08.BL.05 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m

08.BL.05 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

08.BL.05 Weilerite BaAl3H[(As,P)O4]2(OH)6 R 3m 3 2/m

08.BL.05 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m

Other Woodhouseite Information

References:

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

See Also:

Links to other databases for Woodhouseite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

Search for Woodhouseite using:

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

Visit our Advertisers for Woodhouseite :

Ask about Woodhouseite 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 Woodhouseite Specimen Label here :

Woodhouseite

CaAl3(PO4)(SO4)(OH)6
Dana No: 43.04.01.08 Strunz No: 08.BL.05
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.