Mineralogy Database

Ixiolite Mineral Data

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General Ixiolite Information

Help on Chemical  Formula: Chemical Formula: (Ta,Nb,Sn,Mn++,Fe++)O2
Help on Composition: Composition: Molecular Weight = 160.21 gm
   Tantalum   56.47 %  Ta   68.96 % Ta2O5
   Manganese   6.86 %  Mn    8.86 % MnO
   Niobium     5.80 %  Nb    8.30 % Nb2O5
   Iron        3.49 %  Fe    4.48 % FeO
   Tin         7.41 %  Sn    9.41 % SnO2
   Oxygen     19.97 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ta0.5Mn2+0.2Sn0.1Nb0.1Fe2+0.1O2
Help on Environment: Environment: Accessory mineral in granitic pegmatites. Alters to wodginite on heating.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1857
Help on Locality: Locality: Skogbole, Kemio (Kimito) Island, Finland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For "Ixion", of Greek mythology, who was related to Tantalus, in allusion to the mineral's relationship to tantalite.
Help on Name Pronunciation: Name Pronunciation: Ixiolite Say IXIOLITE
Help on Synonym: Synonym: ICSD 12141
  PDF 15-733

Ixiolite Image

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Comments: Hemispherical crystalline aggregate of ixiolite.
Location: Muiane mine, Zambesia, Mozambique. Scale: Specimen size 1.3 cm.
© John Veevaert

Ixiolite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8248:1:0.4487
Help on Cell Dimensions: Cell Dimensions: a = 9.481, b = 11.494, c = 5.158, Z = 16; beta = 90.8° V = 562.04 Den(Calc)= 7.57
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.98(1), 3.65(0.32), 1.459(0.29),

Physical Properties of Ixiolite

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Gray, Black, Steel gray.
Help on Density: Density: 6.94 - 7.23, Average = 7.08
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Habit: Habit: Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Metallic
Help on Streak: Streak: dark brown

Optical Properties of Ixiolite

Help on Optical Data: Optical Data: NCalc= 2.25 - from Gladstone-Dale relationship (KC = 0.1657) where Ncalc=Dcalc*KC+1
NCalc= 2.17 - from Gladstone-Dale relationship (KC = 0.1657) where Ncalc=Dmeas*KC+1

Calculated Properties of Ixiolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.54 gm/cc
note: Specific Gravity of Ixiolite =7.57 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEIxiolite = 709.42 barns/electron
U=PEIxiolite x rElectron Density=4,639.31 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ixiolite is Not Radioactive

Ixiolite Classification

Help on  Dana Class: Dana Class: (08)Multiple Oxides with Nb, Ta, and Ti
  (08.01)where A BO4
  (08.01.10)Dana Group Ixiolite (Ta,Nb,Sn,Mn,Fe)O2 P 2/c 2/m
Help on  Strunz Class: Strunz Class: 04.DB.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DB -With medium-sized cations; chains of edge-sharing octahedra
04.DB.25 Ixiolite (Ta,Nb,Sn,Mn,Fe)O2 P 2/c 2/m
04.DB.25 Ishikawaite (U,Fe,Y,Ca)(Nb,Ta)O4(?) Unk Ortho
04.DB.25 Srilankite (Ti,Zr)O2 P bcn 2/m 2/m 2/m
04.DB.25 Samarskite-(Y) (Y,Fe,U)(Nb,Ta)5O4 P bcn 2/m 2/m 2/m
04.DB.25 Samarskite-(Yb)! (Yb,Y,REE,U,Th,Ca,Fe)(Nb,Ta,Ti)O4 P 2/c 2/m
04.DB.25 Yttrocolumbite-(Y) (Y,U,Fe)(Nb,Ta)O4 Unk Ortho

Other Ixiolite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Ixiolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 04.DB.25





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