Mineralogy Database

Zirconolite-3T Mineral Data

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General Zirconolite-3T Information

Help on Chemical  Formula: Chemical Formula: CaZrTi2O7
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: CaZrTi2O7
Help on IMA Status: IMA Status: Approved IMA 1989
Help on Locality: Locality: Walaweduwa, Bambarabotuwa district, Sabaragamuwa, Sri Lanka. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its composition and crystal structure.
Help on Name Pronunciation: Name Pronunciation: Zirconolite-3T + Pronunciation Say ZIRCONOLITE-3T
Help on Synonym: Synonym: Zirkelite

Zirconolite-3T Image

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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

Help on Axial Ratios: Axial Ratios: a:c = 1:2.31727
Help on Cell Dimensions: Cell Dimensions: a = 7.287, c = 16.886, Z = 7; V = 776.52 Den(Calc)= 5.08
Help on Crystal System: Crystal System: Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: P 312
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 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),

Physical Properties of Zirconolite-3T

Help on Color: Color: Black, Brownish black.
Help on Density: Density: 4.7
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Resinous
Help on Streak: Streak: reddish brown

Optical Properties of Zirconolite-3T

Help on Optical Data: 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

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.79 gm/cc
note: Specific Gravity of Zirconolite-3T =5.08 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PEZirconolite-3T = 42.93 barns/electron
U=PEZirconolite-3T x rElectron Density= 205.81 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zirconolite-3T is Not Radioactive

Zirconolite-3T Classification

Help on  Dana Class: Dana Class: (08)Multiple Oxides with Nb, Ta, and Ti
  (08.02)where (A)2 (B2O6) (O,OH,F)
  (08.02.05)Zirconolite Group Zirkelite (Ca,Th,Ce)Zr(Ti,Nb)2O7 F m3m 4/m 3 2/m Zirconolite-3O (Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O7 C mca 2/m 2/m 2/m Zirconolite-2M CaZrTi2O7 C 2/c 2/m Zirconolite-3T CaZrTi2O7 P 312 3 2 Zirconolite (Ca,Ce)Zr(Ti,Nb,Fe)2O7 None
Help on  Strunz Class: 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

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Zirconolite-3T :
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

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Dana No: Strunz No: 04.DH.30





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