Wycheproofite Mineral Data

General Wycheproofite Information

Chemical Formula:

NaAlZr(PO4)2(OH)2•(H2O)

Composition:

Molecular Weight = 383.17 gm

Sodium 6.00 % Na 8.09 % Na₂O

Zirconium 23.81 % Zr 32.16 % ZrO₂

Aluminum 7.04 % Al 13.31 % Al₂O₃

Phosphorus 16.17 % P 37.04 % P₂O₅

Hydrogen 1.05 % H 9.40 % H₂O

Oxygen 45.93 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaAlZr(PO₄)₂(OH)₂•(H₂O)

Environment:

In pegmatite cavities.

IMA Status:

Approved IMA 1994

Locality:

A granite quarry near Wycheproof, northwestern Victoria, Australia. Link to MinDat.org Location Data.

Name Origin:

For the locality.

Name Pronunciation:

Wycheproofite + Pronunciation

Synonym:

IMA1993-024

Wycheproofite Image

Images:

Wycheproofite

Comments: Pearly, orange-white crystal group of wycheproofite. This is the type specimen for the species by the discoverer, Bill Birch..
Location: A granite quarry near Wycheproof, northwestern Victoria, Australia.. Scale: Crystal size 5 mm tall.
© Bill Birch

Wycheproofite Crystallography

Axial Ratios:

a:b:c =0.5689:1:1.0247

Cell Dimensions:

a = 5.263, b = 9.251, c = 9.48, Z = 2; alpha = 109.49°, beta = 98.57°, gamma = 90.09° V = 430.26 Den(Calc)= 2.96

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 2.603(1), 4.128(0.8), 3.711(0.65),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
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Kolitsch U , European Journal of Mineralogy , 15 (2003) p.1029-1034, The crystal structure of wycheproofite, NaAlZr(PO4)2(OH)2.H2O

Physical Properties of Wycheproofite

Cleavage:

None

Color:

Pale pinkish orange, Pale brownish orange.

Density:

2.81 - 2.82, Average = 2.81

Diaphaneity:

Transparent

Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Massive - Fibrous - Distinctly fibrous fine-grained forms.

Hardness:

4-5 - Fluorite-Apatite

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Pearly

Streak:

white

Optical Properties of Wycheproofite

Gladstone-Dale:

CI meas= -0.063 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2128,KPDmeas= 0.2238,KC= 0.2105
Ncalc = 1.59 - 1.62

Optical Data:

Biaxial (?), a=1.62, g=1.64, bire=0.0200

Pleochroism (x):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Wycheproofite

Electron Density:

Bulk Density (Electron Density)=2.87 gm/cc
note: Specific Gravity of Wycheproofite =2.96 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_{Wycheproofite}= 32.63 barns/electron
U=PE_{Wycheproofite} x rElectron Density= 93.78 barns/cc.

Radioactivity:

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

Wycheproofite Classification

Dana Class:

40.05.05.01 (40)Hydrated Phosphates, etc

(40.05)with miscellaneous formulae

(40.05.05)Dana Group

40.05.05.01 Wycheproofite NaAlZr(PO4)2(OH)2•(H2O) P1 1

Strunz Class:

08.DJ.30 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

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

08.DJ.30 Wycheproofite NaAlZr(PO4)2(OH)2•(H2O) P1 1

Other Wycheproofite Information

References:

NAME( MinRec) PHYS. PROP.(Dana8, AmMin 89:1834) OPTIC PROP.(Am.Min 80:847)

See Also:

Links to other databases for Wycheproofite :
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

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Ask about Wycheproofite here :
Ask-A-Mineralogist from the Mineralogical Society of America
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Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Wycheproofite

NaAlZr(PO4)2(OH)2•(H2O)
Dana No: 40.05.05.01 Strunz No: 08.DJ.30
Locality:

Notes: