Zirconolite-3T Mineral Data

[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery]
Dakota Matrix Minerals
Updated weekly, for the collector, educator, and researcher since 1996
Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome

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.

Name Pronunciation:

Zirconolite-3T + Pronunciation

Synonym:

Zirkelite

Zirconolite-3T Image

Images:

Zirconolite-3T

Comments: Dark brown platy hexagonal zirconolite=3Tcrystals on sanidine.
Location: Castellaccio di Petrignano near Vetrella, Lazio,Viterbo, Italy. Scale: Specimen Size 3x4 cm.
© Diederik Visser

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

Diaphaneity:

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:

Bulk Density (Electron Density)=4.79 gm/cc
note: Specific Gravity of Zirconolite-3T =5.08 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zirconolite-3T is Not Radioactive

Zirconolite-3T Classification

Dana Class:

08.02.05.04 (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-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
11 - Ruff.Info

Search for Zirconolite-3T using:

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

Visit our Advertisers for Zirconolite-3T :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

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: 08.02.05.04 Strunz No: 04.DH.30
Locality:

Notes: