Zirconolite-2M Mineral Data

Zirconolite-2M Mineral Data +

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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.

Synonym:

Zirkelite

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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 - PrismaticH-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),

Crystal Structure:

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Rossell H J , Nature , 283 (1980) p.282-283, Zirconolite - a fluorite-related superstructure, Locality: Synthetic

Physical Properties of Zirconolite-2M

Color:

Black, Brown.

Density:

4.7

Diaphaniety:

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:

r_electron=4.14 gm/cc
note: r_{Zirconolite-2M}=4.39 gm/cc.

Fermion Index

Fermion Index = 0.06702
Boson Index = 0.93298

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zirconolite-2M is Not Radioactive

Zirconolite-2M Classification

Dana Class:

8.2.5.3 (8)Multiple Oxides with Nb, Ta, and Ti

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

(8.2.5)Dana Group

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

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

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

8.2.5.4 Zirconolite-3T CaZrTi2O7 P 3₁2 3 2

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

Strunz Class:

IV/C.15-20* IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.15 - Pyrochlore group, Zirkelite - Zirconolite series

IV/C.15-10 Zirkelite (Ca,Th,Ce)Zr(Ti,Nb)2O7 F m3m 4/m 3 2/m

IV/C.15-20 Zirconolite (Ca,Ce)Zr(Ti,Nb,Fe)2O7 None

IV/C.15-20* Zirconolite-2M CaZrTi2O7 C 2/c 2/m

IV/C.15-20** Zirconolite-3O (Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O7 C mca 2/m 2/m 2/m

IV/C.15-20*** Zirconolite-3T CaZrTi2O7 P 3₁2 3 2

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 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

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

Zirconolite-2M

CaZrTi2O7
Dana No: 8.2.5.3 Strunz No: IV/C.15-20*
Locality:

Notes: