Zirconolite-3T Mineral Data

Zirconolite-3T Mineral Data +

[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery]
John Betts - Fine Minerals
Classic minerals, out-of-print books & magazines, plus informative articles for collectors

General Zirconolite-3T 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

IMA Status:

Approved IMA 1989

Locality:

Walaweduwa, Bambarabotuwa district, Sabaragamuwa, Sri Lanka. Link to MinDat.org Location Data.

Name Origin:

Named after its composition and crystal structure.

Synonym:

Zirkelite

Search for Zirconolite-3T Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Zirconolite-3T Crystallography

Axial Ratios:

a:c = 1:2.31727

Cell Dimensions:

a = 7.287, c = 16.886, Z = 7; V = 776.52 Den(Calc)= 5.08

Crystal System:

Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: P 3₁2

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

By Intensity(I/I_o): 2.98(1), 1.82(0.5), 1.75(0.3),2.53(0.3), 2.84(0.2), 1.51(0.1), 1.525(0.1), 2.3(0.1),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Grey I E , Mumme W G , Ness T J , Roth R S , Smith K L , Journal of Solid State Chemistry , 174 (2003) p.285-295, Structural relations between weberite and zirconolite polytypes -, refinements of doped 3T and 4M Ca2Ta2O7 and 3T CaZrTi2O7, Locality: synthetic

Physical Properties of Zirconolite-3T

Color:

Black, Brownish black.

Density:

4.7

Diaphaniety:

Opaque

Fracture:

Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Habit:

Platy - Sheet forms (e.g. micas).

Habit:

Pseudo Hexagonal - Crystals show a hexagonal outline.

Hardness:

5.5 - Knife Blade

Luster:

Resinous

Streak:

reddish brown

Optical Properties of Zirconolite-3T

Optical Data:

Uniaxial (?).

NCalc= 2.51 - 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-3T

Electron Density:

r_electron=4.79 gm/cc
note: r_{Zirconolite-3T}=5.08 gm/cc.

Fermion Index

Fermion Index = 0.06702
Boson Index = 0.93298

Photoelectric:

PE_{Zirconolite-3T}= 42.93 barns/electron
U=PE_{Zirconolite-3T} x r_electron= 205.81 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zirconolite-3T is Not Radioactive

Zirconolite-3T Classification

Dana Class:

8.2.5.4 (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-3T Information

References:

NAME( Dana8) PHYS. PROP.(Dana8)

See Also:

Links to other databases for Zirconolite-3T :
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

Search for Zirconolite-3T using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Zirconolite-3T :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Zirconolite-3T Mineral Data :

Ask about Zirconolite-3T 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 Zirconolite-3T Specimen Label here :

Zirconolite-3T

CaZrTi2O7
Dana No: 8.2.5.4 Strunz No: IV/C.15-20***
Locality:

Notes: