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Ixiolite Mineral Data
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General Ixiolite Information
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 Chemical Formula: |
(Ta,Nb,Sn,Mn++,Fe++)O2 |
| Composition: |
Molecular Weight = 160.21 gm |
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Tantalum 56.47 % Ta 68.96 % Ta2O5 |
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Manganese 6.86 % Mn 8.86 % MnO |
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Niobium 5.80 % Nb 8.30 % Nb2O5 |
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Iron 3.49 % Fe 4.48 % FeO |
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Tin 7.41 % Sn 9.41 % SnO2 |
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Oxygen 19.97 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ta0.5Mn2+0.2Sn0.1Nb0.1Fe2+0.1O2 |
| Environment: |
Accessory mineral in granitic pegmatites. Alters to wodginite on heating. |
| IMA Status: |
Valid Species (Pre-IMA) 1857 |
| Locality: |
Skogbole, Kemio (Kimito) Island, Finland. Link to MinDat.org Location Data. |
| Name Origin: |
For "Ixion", of Greek mythology, who was related to Tantalus, in allusion to the mineral's relationship to tantalite. |
| Name Pronunciation: |
Ixiolite  |
| Synonym: |
ICSD 12141 |
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PDF 15-733 |
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Ixiolite Image |
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Images:
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Ixiolite
Comments: Hemispherical crystalline aggregate of ixiolite.
Location: Muiane mine, Zambesia, Mozambique.
Scale: Specimen size 1.3 cm.
© John Veevaert |
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Ixiolite Crystallography
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| Axial Ratios: |
a:b:c =0.8248:1:0.4487 |
| Cell Dimensions: |
a = 9.481, b = 11.494, c = 5.158, Z = 16; beta = 90.8° V = 562.04 Den(Calc)= 7.57 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.98(1), 3.65(0.32), 1.459(0.29), |
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Physical Properties of Ixiolite
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| Cleavage: |
{???} Indistinct |
| Color: |
Gray, Black, Steel gray. |
| Density: |
6.94 - 7.23, Average = 7.08 |
| Diaphaneity: |
Opaque |
| Fracture: |
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. |
| Habit: |
Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Hardness: |
6-6.5 - Orthoclase-Pyrite |
| Luster: |
Metallic |
| Streak: |
dark brown |
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Optical Properties of Ixiolite
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| 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
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Calculated Properties of Ixiolite
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| Electron Density: |
Bulk Density (Electron Density)=6.54 gm/cc
note: Specific Gravity of Ixiolite =7.57 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEIxiolite = 709.42 barns/electron
U=PEIxiolite x rElectron Density=4,639.31 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ixiolite is Not Radioactive |
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Ixiolite Classification
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| Dana Class: |
08.01.10.01 (08)Multiple Oxides with Nb, Ta, and Ti |
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(08.01)where A BO4 |
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(08.01.10)Dana Group |
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08.01.10.01 Ixiolite (Ta,Nb,Sn,Mn,Fe)O2 P 2/c 2/m |
| Strunz Class: |
04.DB.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.D - Metal:Oxygen = 1:2 and similar |
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04.DB -With medium-sized cations; chains of edge-sharing octahedra |
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04.DB.25 Ixiolite (Ta,Nb,Sn,Mn,Fe)O2 P 2/c 2/m |
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04.DB.25 Ishikawaite (U,Fe,Y,Ca)(Nb,Ta)O4(?) Unk Ortho |
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04.DB.25 Srilankite (Ti,Zr)O2 P bcn 2/m 2/m 2/m |
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04.DB.25 Samarskite-(Y) (Y,Fe,U)(Nb,Ta)5O4 P bcn 2/m 2/m 2/m |
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04.DB.25 Samarskite-(Yb)! (Yb,Y,REE,U,Th,Ca,Fe)(Nb,Ta,Ti)O4 P 2/c 2/m |
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04.DB.25 Yttrocolumbite-(Y) (Y,U,Fe)(Nb,Ta)O4 Unk Ortho |
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Other Ixiolite Information
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) |
| 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
15 - WWW-MINCRYST
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Ixiolite
(Ta,Nb,Sn,Mn++,Fe++)O2
Dana No: 08.01.10.01 Strunz No: 04.DB.25
Locality:
Notes:
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