Voggite Mineral Data

General Voggite Information

Chemical Formula:

Na2Zr(PO4)(CO3)(OH)•2(H2O)

Composition:

Molecular Weight = 345.22 gm

Sodium 13.32 % Na 17.95 % Na₂O

Zirconium 26.42 % Zr 35.69 % ZrO₂

Phosphorus 8.97 % P 20.56 % P₂O₅

Hydrogen 1.46 % H 13.05 % H₂O

Carbon 3.48 % C 12.75 % CO₂

Oxygen 46.35 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₂Zr(PO₄)(CO₃)(OH)•2(H₂O)

Environment:

Margins of an altered amygdaloidal basalt dyke that has intruded a silicocarbonatite sill.

IMA Status:

Approved IMA 1990

Locality:

Francon quarry, Montreal, Quebec. Link to MinDat.org Location Data.

Name Origin:

Named for for Adolf Vogg who first discovered the mineral.

Name Pronunciation:

Voggite

Synonym:

ICSD 66310

IMA1988-037

PDF 45-1442

Voggite Image

Images:

Voggite

Comments: Scanning-electron photomicrograph of voggite showing typical habit of crystals.
Location: Silicocarbonatite sills exposed at the Francon limestone quarry, Montreal, Quebec. Scale: Image size 360 µm.
© Canadian Mineralogist

Voggite Crystallography

Axial Ratios:

a:b:c =1.8683:1:1.7927

Cell Dimensions:

a = 12.251, b = 6.557, c = 11.755, Z = 4; beta = 116.12° V = 847.84 Den(Calc)= 2.70

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/m

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

By Intensity(I/I_o): 10.2(1), 5.58(0.8), 3.89(0.65),

Crystal Structure:

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Szymanski J T , Roberts A C , Mineralogical Magazine , 54 (1990) p.495-500, The crystal structure of voggite, a new hydrated, Na-Zr hydroxide-phosphate-carbonate mineral, Locality: Francon quarry, Montreal, Quebec, Canada

Physical Properties of Voggite

Cleavage:

{010} Poor

Color:

Colorless.

Density:

2.7

Diaphaneity:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Voggite

Gladstone-Dale:

CI meas= -0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2204,KPDmeas= 0.2204,KC= 0.2183
Ncalc = 1.59

Optical Data:

Biaxial (+), a=1.569, b=1.594, g=1.622, bire=0.0530, 2V(Calc)=90, 2V(Meas)=81-88.

Calculated Properties of Voggite

Electron Density:

Bulk Density (Electron Density)=2.63 gm/cc
note: Specific Gravity of Voggite =2.70 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_Voggite= 35.63 barns/electron
U=PE_Voggite x rElectron Density= 93.62 barns/cc.

Radioactivity:

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

Voggite Classification

Dana Class:

43.05.16.01 (43)Compound Phosphates, etc.

(43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)

(43.05.16)Dana Group

43.05.16.01 Voggite Na2Zr(PO4)(CO3)(OH)•2(H2O) I2/m 2/m

Strunz Class:

08.DO.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DO -With CO3, SO4, SiO4

08.DO.10 Voggite Na2Zr(PO4)(CO3)(OH)•2(H2O) I2/m 2/m

Other Voggite Information

References:

NAME( CanMin, 28:155) PHYS. PROP.(Am.Min.,Vol.75,p1434,1990) OPTIC PROP.(Am.Min.,Vol.75,p1434,1990)

See Also:

Links to other databases for Voggite :
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

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Ask about Voggite here :
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Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Voggite

Na2Zr(PO4)(CO3)(OH)•2(H2O)
Dana No: 43.05.16.01 Strunz No: 08.DO.10
Locality:

Notes: