Zirconolite-2M Mineral Data

General Zirconolite-2M Information

Chemical Formula:

CaZrTi2O7

Composition:

Molecular Weight = 339.06 gm

Calcium 11.82 % Ca 16.54 % CaO

Zirconium 26.91 % Zr 36.34 % ZrO₂

Titanium 28.24 % Ti 47.12 % TiO₂

Oxygen 33.03 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaZrTi₂O₇

Environment:

Carbonatite.

IMA Status:

Approved IMA 1989

Locality:

Kaiserstuhl, Germany. Link to MinDat.org Location Data.

Name Origin:

Named from its compostion and crystal structure.

Name Pronunciation:

Zirconolite-2M + Pronunciation

Synonym:

Zirkelite

Zirconolite-2M Image

Images:

Zirconolite-2M

Comments: Brown needles of zirconolite-2M in quartz.
Location: In den Dellen, Mendig, Laacher See, Eifel, Germany. Scale: Not given.
© Diederik Visser

Zirconolite-2M Crystallography

Axial Ratios:

a:b:c =1.7076:1:1.5761

Cell Dimensions:

a = 12.445, b = 7.288, c = 11.487, Z = 8; beta = 100.38° V = 1,024.81 Den(Calc)= 4.39

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 2.93(1), 2.82(0.4), 2.507(0.3),2.513(0.3), 1.749(0.2), 1.754(0.2), 1.797(0.2), 1.806(0.1),

Physical Properties of Zirconolite-2M

Color:

Black, Brown.

Density:

4.7

Diaphaneity:

Opaque

Hardness:

5.5 - Knife Blade

Luster:

Resinous

Streak:

dark brown

Optical Properties of Zirconolite-2M

Optical Data:

NCalc= 2.3 - from Gladstone-Dale relationship (KC = 0.2966) where Ncalc=Dcalc*KC+1
NCalc= 2.39 - from Gladstone-Dale relationship (KC = 0.2966) where Ncalc=Dmeas*KC+1

Calculated Properties of Zirconolite-2M

Electron Density:

Bulk Density (Electron Density)=4.14 gm/cc
note: Specific Gravity of Zirconolite-2M =4.39 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_{Zirconolite-2M}= 42.93 barns/electron
U=PE_{Zirconolite-2M} x rElectron Density= 177.85 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zirconolite-2M is Not Radioactive

Zirconolite-2M Classification

Dana Class:

08.02.05.03 (08)Multiple Oxides with Nb, Ta, and Ti

(08.02)where (A)2 (B2O6) (O,OH,F)

(08.02.05)Zirconolite Group

08.02.05.01 Zirkelite (Ca,Th,Ce)Zr(Ti,Nb)2O7 F m3m 4/m 3 2/m

08.02.05.02 Zirconolite-3O (Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O7 C mca 2/m 2/m 2/m

08.02.05.03 Zirconolite-2M CaZrTi2O7 C 2/c 2/m

08.02.05.04 Zirconolite-3T CaZrTi2O7 P 3₁2 3 2

08.02.05.05 Zirconolite (Ca,Ce)Zr(Ti,Nb,Fe)2O7 None

Strunz Class:

04.DH.30 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra

04.DH.30 Zirconolite-3O (Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O7 C mca 2/m 2/m 2/m

04.DH.30 Zirconolite-3T CaZrTi2O7 P 3₁2 3 2

04.DH.30 Zirconolite-2M CaZrTi2O7 C 2/c 2/m

04.DH.30 Zirconolite (Ca,Ce)Zr(Ti,Nb,Fe)2O7 None

Other Zirconolite-2M Information

References:

NAME( Dana8) PHYS. PROP.(Dana8)

See Also:

Links to other databases for Zirconolite-2M :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

Search for Zirconolite-2M using:

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

Visit our Advertisers for Zirconolite-2M :

Ask about Zirconolite-2M 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 Espa�ol

Print or Cut-and-Paste your Zirconolite-2M Specimen Label here :

Zirconolite-2M

CaZrTi2O7
Dana No: 08.02.05.03 Strunz No: 04.DH.30
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.