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Oxykinoshitalite

A valid IMA mineral species
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About OxykinoshitaliteHide

Formula:
(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2
Colour:
Bright orange to brown
Lustre:
Vitreous
Hardness:
2½
Specific Gravity:
3.3
Crystal System:
Monoclinic
Name:
For the composition and relationship with Kinoshitalite

Unique IdentifiersHide

Mindat ID:
27464
Long-form identifier:
mindat:1:1:27464:7

IMA Classification of OxykinoshitaliteHide

Approved
IMA Formula:
BaMg2Ti4+O2(Si2Al2)O10
Approval year:
2004
First published:
2005

Classification of OxykinoshitaliteHide

9.EC.35

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference for Standard
OknsIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
OknsWarr (2020)Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of OxykinoshitaliteHide

Vitreous
Colour:
Bright orange to brown
Streak:
Brown
Hardness:
2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
on {001}
Fracture:
Splintery
Density:
3.3 g/cm3 (Measured)    3.45 g/cm3 (Calculated)

Optical Data of OxykinoshitaliteHide

Type:
Biaxial (+)
RI values:
nα = 1.707 - 1.709 nβ = 1.709 - 1.711 nγ = 1.718 - 1.720
2V:
Measured: 54° to 58°, Calculated: 51°
Max. Birefringence:
δ = 0.011
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Surface Relief:
Moderate
Optical Extinction:
X ∧ c = 2° (in β obtuse), Y = b, Z ∧ a = 8° (in β obtuse)
Pleochroism:
Strong
Comments:
X pale brown; Y ≈ Z deep red-brown.
Comments:
Absorption: X < Y ≈ Z.

Chemistry of OxykinoshitaliteHide

Mindat Formula:
(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2
Element Weights:
Element% weight
O37.311 %
Ba26.687 %
Si21.832 %
Mg14.170 %

Calculated from ideal end-member formula.

Crystallography of OxykinoshitaliteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 5.3516 Å, b = 9.2817 Å, c = 10.0475 Å
β = 100.337°
Ratio:
a:b:c = 0.577 : 1 : 1.083
Unit Cell V:
490.98 ų
Z:
2
Comment:
1M polytype

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006061OxykinoshitaliteKogarko L N, Uvarova Y A, Sokolova E, Hawthorne F C, Ottolini L, Grice J D (2005) Oxykinoshitalite, a new species of mica from Fernando-do-Noronha island, Brazil: Occurrence and crystal structure The Canadian Mineralogist 43 1501-15102005Fernando-do-Noronha island, Brazil0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.637 Å(100)
2.172 Å(90)
3.646 Å(70)
3.130 Å(70)
3.383 Å(60)
2.902 Å(50)
2.435 Å(50)
1.988 Å(50)
1.661 Å(50)
1.547 Å(50)
1.526 Å(50)
Comments:
Format: d/Å (I/%) (hkl), from type description

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of OxykinoshitaliteHide

General Appearance of Type Material:
Corroded irregularly shaped grains, 0.03 to 0.05 mm across,
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Ontario, Canada.
Geological Setting of Type Material:
Olivine nephelinite.
Associated Minerals at Type Locality:

Synonyms of OxykinoshitaliteHide

Other Language Names for OxykinoshitaliteHide

Relationship of Oxykinoshitalite to other SpeciesHide

Other Members of Brittle Mica Group:
Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
BityiteCaLiAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
'Chloroferrokinoshitalite'(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2
ClintoniteCaAlMg2(SiAl3O10)(OH)2Mon. 2/m : B2/m
Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon. 2/m : B2/m
FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
GanteriteBa0.5(Na,K)0.5Al2(Si2.5Al1.5)O10(OH)2Mon. 2/m : B2/b
Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon. 2/m : B2/m
MargariteCaAl2(Al2Si2O10)(OH)2Mon. 2/m : B2/b

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Oxykinoshitalite associated with UlvöspinelTiFe2+2O4
3 photos of Oxykinoshitalite associated with NephelineNa3K(Al4Si4O16)
3 photos of Oxykinoshitalite associated with 'Fayalite-Forsterite Series'
3 photos of Oxykinoshitalite associated with Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
3 photos of Oxykinoshitalite associated with CalciteCaCO3
3 photos of Oxykinoshitalite associated with K Feldspar
3 photos of Oxykinoshitalite associated with 'Apatite'Ca5(PO4)3A

Related Minerals - Strunz-mindat GroupingHide

9.EC.MeifuiteKFe6(Si7Al)O19(OH)4Cl2Tric. 1 : P1
9.EC.BalestraiteKLi2V5+Si4O12Mon. 2 : B2
9.EC.05TalcMg3Si4O10(OH)2Tric. 1 : P1
9.EC.05MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
9.EC.05WillemseiteNi3Si4O10(OH)2Mon.
9.EC.9.EC.VoloshiniteRb(LiAl1.5◻0.5)(Al0.5Si3.5)O10F2Mon. 2/m : B2/b
9.EC.10FluorluanshiweiiteKLiAl1.5(Si3.5Al0.5)O10F2Mon. 2/m : B2/m
9.EC.10GarmiteCsLiMg2(Si4O10)F2Mon.
9.EC.10GorbunoviteCsLi2(Ti,Fe)Si4O10(F,OH,O)2Mon.
9.EC.10FerripyrophylliteFe3+Si2O5(OH)Mon. 2/m
9.EC.10ManganiceladoniteK(MgMn3+◻)(Si4O10)(OH)2Mon.
9.EC.10LuanshiweiiteKLiAl1.5(Si3.5Al0.5)O10(OH)2Mon. 2/m : B2/b
9.EC.10PyrophylliteAl2Si4O10(OH)2Tric. 1
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2Mon.
9.EC.15FerroaluminoceladoniteK(Fe2+Al◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15FerroceladoniteK(Fe2+Fe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15GanteriteBa0.5(Na,K)0.5Al2(Si2.5Al1.5)O10(OH)2Mon. 2/m : B2/b
9.EC.15KreiteriteCsLi2Fe3+(Si4O10)F2Mon.
9.EC.15RoscoeliteKV3+2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15AluminoceladoniteK(MgAl◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15Tobelite(NH4)Al2(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.15TainioliteKLiMg2(Si4O10)F2Mon. 2/m : B2/m
9.EC.15CeladoniteK(MgFe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromceladoniteK(MgCr◻)(Si4O10)(OH)2Mon. 2 : B2
9.EC.15MontdoriteKFe2+1.5Mn2+0.5Mg0.5Si4O10(F,OH)2Mon. 2/m : B2/m
9.EC.15ChromphylliteKCr2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2Mon. 2/m
9.EC.15'UM1988-22-SiO:AlCaFFeHKLiMg'KLiMgAl2Si3O10F2Mon.
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.20MasutomiliteK(LiAlMn2+)[AlSi3O10]F2Mon. 2 : B2
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2Mon. 2/m : B2/m
9.EC.20'Chloroferrokinoshitalite'(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2
9.EC.20SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2Mon.
9.EC.20HendricksiteKZn3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20TetraferriphlogopiteKMg3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
9.EC.20FluoranniteKFe2+3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20Suhailite(NH4)Fe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EphesiteNaLiAl2(Al2Si2O10)(OH)2Tric. 1 : P1
9.EC.20NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2Mon. 2/m : B2/m
9.EC.20OrloviteKLi2Ti(Si4O10)OFMon. 2 : B2
9.EC.20TetraferrianniteKFe2+3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
9.EC.20ShirokshiniteK(NaMg2)(Si4O10)F2Mon. 2/m : B2/m
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20ShirozuliteKMn2+3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.20FluorophlogopiteKMg3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20Wonesite(Na,K,◻)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4Mon. 2/m : B2/m
9.EC.20'UM2004-49-SiO:AlCsFHKLi'(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
9.EC.20AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.22'Pimelite'Ni3Si4O10(OH)2 · 4H2OHex.
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon. 2/m : B2/m
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon. 2/m : B2/m
9.EC.35ClintoniteCaAlMg2(SiAl3O10)(OH)2Mon. 2/m : B2/m
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
9.EC.35BityiteCaLiAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)Orth.
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
9.EC.45SwineforditeLi(Al,Li,Mg)3((Si,Al)4O10)2(OH,F)4 · nH2OMon. 2/m : B2/m
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon. 2/m : B2/m
9.EC.45ZincsiliteZn3Si4O10(OH)2 · 4H2O (?)Mon.
9.EC.45HanjiangiteBa2CaV3+Al(H2AlSi3O12)(CO3)2FMon. 2 : B2
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.50VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
9.EC.52'Tarasovite'near NaKAl11Si13O40(OH)9 · 3H2O
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Borocookeite(LiAl4◻)[BSi3O10](OH)8Mon. m : Bb
9.EC.55FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2
9.EC.55PennantiteMn2+5Al(AlSi3O10)(OH)8Tric.
9.EC.55VakhrushevaiteMg5Cr(AlSi3O10)(OH)8Tric. 1
9.EC.55NimiteNi5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Cookeite(LiAl4◻)[AlSi3O10](OH)8Mon. 2/m
9.EC.55GonyeriteMn2+5Fe3+(Fe3+Si3O10)(OH)8Orth.
9.EC.55ChamositeFe2+5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55'Orthochamosite'(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55BaileychloreZn5Al(AlSi3O10)(OH)8Tric. 1
9.EC.55SudoiteMg2Al3(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8Tric. 1 : P1
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8Mon. 2 : B2
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2OMon.
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2OMon.
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)Mon.
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2OMon. 2/m : B2/m
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon. 2/m : B2/m
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2OMon.
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2Mon.
9.EC.70