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Oxykinoshitalite

Formula:
(Ba,K)(Mg,Ti,Fe
3+
 
,Fe
2+
 
)
 
3
[(O,OH,F)
 
2
|(Si,Al)
 
4
O
 
10
]
System:MonoclinicColour:Bright orange to brown
Hardness:
Name:For the composition and relationship with Kinoshitalite


Mica Group

Classification of Oxykinoshitalite

IMA status:Approved 2004
Strunz 8th edition ID:8/H.12-28
Nickel-Strunz 10th (pending) edition ID:9.EC.35

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

Type Locality:Fernando de Noronha Island group, Pernambuco, Northeast Region, Brazil
General Appearance of Type Material:corroded irregularly shaped grains, 0.03 to 0.05 mm across
Geological Setting of type material:olivine nephelinite
Associated Minerals at type locality:
OlivineNephelineK FeldsparClinopyroxene SubgroupCalcite
Apatite

Physical Properties of Oxykinoshitalite

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

Crystallography of Oxykinoshitalite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m (B1 1 2/m) [C2/m] {C1 2/m 1}
Cell Parameters:a = 5.3516Å, b = 9.2817Å, c = 10.0475Å
β = 100.337°
Ratio:a:b:c = 0.577 : 1 : 1.083
Unit Cell Volume:V 490.98 ų
Z:2
X-Ray Powder Diffraction:
d-spacingIntensity
2.637 (10)
2.172 (9)
3.646 (7)
3.130 (7)
3.383 (6)
2.902 (5)
2.435 (5)
1.988 (5)
1.661 (5)
1.547 (5)
Comments:Format: d/Å (I/%) (hkl), from type description

Optical Data of Oxykinoshitalite

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°
Maximum Birefringence:δ = 0.011

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Pleochroism:Strong
Comments:X pale brown, Y ≈ Z deep red-brown
X ∧ c = 2° (in β obtuse), Y = b, Z ∧ a = 8° (in β obtuse)
absorption X < Y ≈ Z

Chemical Properties of Oxykinoshitalite

Formula:
(Ba,K)(Mg,Ti,Fe
3+
 
,Fe
2+
 
)
 
3
[(O,OH,F)
 
2
|(Si,Al)
 
4
O
 
10
]
Essential elements:
All elements listed in formula:Al, Ba, F, Fe, H, K, Mg, O, Si, Ti
Analyical Data:The mineral was analysed by electron microprobe analysis (EMPA) and secondary ion mass spectrometry (SIMS)
The formula unit was calculated on the basis of 12 oxide, hydroxide and fluoride ions
SiO2 (28.92)
Al2O3 (15.26)
TiO2 (11.94)
Cr2O3 (0.03)
Fe2O3 (9.07)
FeO (3.84)
MnO (0.14)
MgO (10.74)
CaO (0.03)
BaO (15.49)
Na2O (0.39)
K2O (4.05)
F (0.91)
H2O (0.55)

sum 100.97 wt.%

V, Ni, Zn, Sr and Cl were not detected (LOD's not given)
Empirical Formula:
(Ba
 
0.50
K
 
0.43
Na
 
0.07
)
 
1.00
(Mg
 
1.33
Fe
2+
0.27
Mn
2+
0.01
Fe
3+
0.57
Ti
 
0.74
)
 
2.92
(Si
 
2.40
Al
 
1.49
)
 
3.89
O
 
10
[O
 
1.46
(OH)
 
0.30
F
 
0.24
]
 
2.00

Relationship of Oxykinoshitalite to other Species

Related to:
  • Mica Group
  • Related Minerals - Nickel-Strunz Grouping):
    9.EC.05Minnesotaite
    (Fe,Mg)
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.05Talc
    Mg
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.05Willemseite
    (Ni,Mg)
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.10Ferripyrophyllite
    Fe
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.10Pyrophyllite
    Al
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.15Boromuscovite
    KAl
     
    2
    [(OH)
     
    2
    |BSi
     
    3
    O
     
    10
    ]
    9.EC.15Celadonite
    K(Mg,Fe
    2+
     
    )(Fe
    3+
     
    ,Al)[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Chernykhite
    (Ba,Na)(V
    3+
     
    ,Al,Mg)
     
    2
    [(OH)
     
    2
    |(Si,Al)
     
    4
    O
     
    10
    ]
    9.EC.15Montdorite
    (K,Na)
     
    2
    (Fe
    2+
     
    ,Mn
    2+
     
    ,Mg)
     
    5
    [(OH,F)
     
    2
    |Si
     
    4
    O
     
    10
    ]
     
    2
    9.EC.15Muscovite
    KAl
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Nanpingite
    CsAl
     
    2
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Paragonite
    NaAl
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Roscoelite
    K(V,Al)
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Tobelite
    (NH
     
    4
    ,K)Al
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Aluminoceladonite
    K(Mg,Fe
    2+
     
    )(Al,Fe
    3+
     
    )[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Chromphyllite
    K(Cr,Al)
     
    2
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Ferro-aluminoceladonite
    K(Fe
    2+
     
    ,Mg)(Al,Fe
    3+
     
    )[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Ferroceladonite
    K(Fe
    2+
     
    ,Mg)(Fe
    3+
     
    ,Al)[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Chromceladonite
    K(Mg,Fe
    2+
     
    )(Cr,Al)[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Tainiolite
    KLiMg
     
    2
    [F
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Ganterite
    (Ba,Na,K)(Al,Mg)
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Annite
    KFe
    2+
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Biotite
    9.EC.20Ephesite
    NaLiAl
     
    2
    [(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Hendricksite
    K(Zn,Mg,Mn
    2+
     
    )
     
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Masutomilite
    (K,Rb)(Li,Mn
    3+
     
    ,Al)
     
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Norrishite
    KLiMn
    2+
    2
    [(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.20Phlogopite
    KMg
     
    3
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Polylithionite
    KLi
     
    2
    Al[(F,OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.20Preiswerkite
    NaMg
     
    2
    Al[(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Siderophyllite
    KFe
    2+
    2
    Al[(F,OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Tetra-ferriphlogopite
    KMg
     
    3
    [(OH,F)
     
    2
    |(Fe
    3+
     
    ,Al)Si
     
    3
    O
     
    10
    ]
    9.EC.20Wonesite
    (Na,K)(Mg,fe,Al)
     
    6
    (Al,Si)
     
    8
    O
     
    20
    (OH,F)
     
    4
    9.EC.20Zinnwaldite
    KLiFe
    2+
     
    Al[(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Eastonite
    KMg
     
    2
    Al[(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Tetraferriannite
    KFe
    2+
    3
    [(OH)
     
    2
    |(Fe
    3+
     
    ,Al)Si
     
    3
    O
     
    10
    ]
    9.EC.20Trilithionite
    K(Li,Al)
     
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Fluorannite
    KFe
    2+
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Shirokshinite
    KNaMg
     
    2
    [F
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.20Shirozulite
    K(Mn
    2+
     
    ,Mg)
     
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Sokolovaite
    CsLi
     
    2
    AlSi
     
    4
    O
     
    10
    F
     
    2
    9.EC.20Aspidolite
    NaMg
     
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Fluorophlogopite
    KMg
     
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.25Brammallite
    Na
     
    0.65
    Al
     
    2.0
    ٱAl
     
    0.65
    Si
     
    3.35
    O
     
    10
    (OH)
     
    2
    9.EC.30Margarite
    CaAl
     
    2
    [(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.35Anandite
    (Ba,K)(Fe
    2+
     
    ,Mg)
     
    3
    [(O,OH)
     
    2
    |(Si,Al,Fe)
     
    4
    O
     
    10
    ]
    9.EC.35Bityite
    CaLiAl
     
    2
    [(OH)
     
    2
    |BeAlSi
     
    2
    O
     
    10
    ]
    9.EC.35Clintonite
    Ca(Mg,Al)
     
    3
    [(OH)
     
    2
    |Al
     
    3
    SiO
     
    10
    ]
    9.EC.35Kinoshitalite
    (Ba,K)(Mg,Mn
    2+
     
    ,Al)
     
    3
    [(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.35Ferrokinoshitalite
    (Ba,K)(Fe
    2+
     
    ,Mg)
     
    3
    [(OH,F)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.40Beidellite
    (Na,Ca
     
    0.5
    )
     
    0.3
    Al
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.40Kurumsakite
    (Zn,Ni,Cu)
     
    8
    Al
     
    8
    V
     
    2
    Si
     
    5
    O
     
    35
    ·27H
     
    2
    O (or near)
    9.EC.40Montmorillonite
    (Na,Ca)
     
    0.33
    (Al,Mg)
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.40Nontronite
    Na
     
    0.3
    Fe
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.40Volkonskoite
    Ca
     
    0.3
    (Cr,Mg,Fe)
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.40Yakhontovite
    (Ca,Na)
     
    0.5
    (Cu,Fe,Mg)
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ·3H
     
    2
    O
    9.EC.40Smectite
    9.EC.45Hectorite
    Na
     
    0.3
    (Mg,Li)
     
    3
    Si
     
    4
    O
     
    10
    (F,OH)
     
    2
    9.EC.45Saponite
    Ca
     
    0.25
    (Mg,Fe)
     
    3
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.45Sauconite
    Na
     
    0.3
    Zn
     
    3
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.45Spadaite
    MgSiO
     
    2
    (OH)
     
    2
    ·H
     
    2
    O
    9.EC.45Stevensite
    (Ca,Na)
     
    x
    Mg
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.45Swinefordite
    Li(Al,Li,Mg)
     
    4
    (Si,Al)
     
    8
    O
     
    20
    ,(OH,F)
     
    4
    ·xH
     
    2
    O
    9.EC.45Zincsilite
    Zn
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.45Ferrosaponite
    Ca
     
    0.3
    (Fe
    2+
     
    ,Mg,Fe
    3+
     
    )
     
    3
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.50Vermiculite
    (Mg,Fe,Al)
     
    3
    (Al,Si)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.55Baileychlore
    (Zn,Fe,Al,Mg)
     
    6
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    8
    9.EC.55Chamosite
    (Fe
    2+
     
    ,Mg)
     
    5
    Al[(OH)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Clinochlore
    (Mg,Fe
    2+
     
    )
     
    5
    Al[(OH)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Cookeite
    LiAl
     
    4
    (Si
     
    3
    Al)O
     
    10
    (OH)
     
    8
    9.EC.55Franklinfurnaceite
    Ca
     
    2
    FeMn
     
    3
    MnZn
     
    2
    Si
     
    2
    O
     
    10
    (OH)
     
    8
    9.EC.55Gonyerite
    (Mn,Mg)
     
    5
    Fe(Si
     
    3
    Fe)O
     
    10
    (OH)
     
    8
    9.EC.55Nimite
    (Ni,Mg,Al)
     
    6
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    8
    9.EC.55Orthochamosite
    (Fe,Mg,Fe)
     
    5
    Al(Si
     
    3
    Al)O
     
    10
    (OH,O)
     
    8
    9.EC.55Pennantite
    (Mn
     
    5
    Al)(Si
     
    3
    Al)O
     
    10
    (OH)
     
    8
    9.EC.55Sudoite
    (Mg,Fe
    2+
     
    )
     
    2
    Al
     
    3
    [(OH)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Donbassite
    Al
     
    2
    [Al
     
    2.33
    ][Si
     
    3
    AlO
     
    10
    ](OH)
     
    8
    9.EC.55Glagolevite
    Na(Mg,Al)
     
    6
    [(OH,O)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Borocookeite
    Li
     
    1+3x
    Al
     
    4-x
    [(BSi
     
    3
    )O
     
    10
    ](OH)
     
    8
    [0.00 <= x <=0.33]
    9.EC.60Aliettite
    Ca
     
    0.2
    Mg
     
    6
    (Si,Al)
     
    8
    O
     
    20
    (OH)
     
    4
    ·4H
     
    2
    O
    9.EC.60Corrensite
    (Mg,Fe)
     
    9
    (Si,Al)
     
    8
    O
     
    20
    (OH)
     
    10
    ·nH
     
    2
    O
    9.EC.60Dozyite
    Mg
     
    7
    Al
     
    2
    [(OH)
     
    12
    |Al
     
    2
    Si
     
    4
    O
     
    15
    ]
    9.EC.60Hydrobiotite
    9.EC.60Karpinskite
    (Ni,Mg)
     
    2
    Si
     
    2
    O
     
    5
    (OH)
     
    2
    9.EC.60Kulkeite
    Mg
     
    8
    Al(AlSi
     
    7
    )O
     
    20
    (OH)
     
    10
    9.EC.60Lunijianlaite
    Li
     
    0.7
    Al
     
    6.2
    (Si
     
    7
    AlO
     
    20
    )(OH,O)
     
    10
    9.EC.60Rectorite
    (Na,Ca)Al
     
    4
    (Si,Al)
     
    8
    O
     
    20
    (OH)
     
    4
    ·2H
     
    2
    O
    9.EC.60Saliotite
    Li
     
    0.5
    Na
     
    0.5
    Al
     
    3
    Si
     
    3
    AlO
     
    10
    (OH)
     
    5
    9.EC.60Tosudite
    9.EC.60Brinrobertsite
    Na
     
    0.3
    Al
     
    4
    [(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
     
    2
    · 3.5 H
     
    2
    O
    9.EC.65Macaulayite
    (Fe,Al)
     
    24
    Si
     
    4
    O
     
    43
    (OH)
     
    2
    9.EC.70Burckhardtite
    Pb
     
    2
    (Fe,Mn)AlTeO
     
    2
    Si
     
    3
    O
     
    10
    (OH)
     
    2
    ·H
     
    2
    O
    9.EC.75Ferrisurite
    (Pb,Ca)
     
    2-3
    (CO
     
    3
    )
     
    1.5-2
    (OH,F)
     
    0.5-1
    [(Fe,Al)
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ]·nH
     
    2
    O
    9.EC.75Surite
    Pb(Pb,Ca)(CO
     
    3
    )
     
    2
    (Al,Fe,Mg)
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.75Niksergievite
    (Ba,Ca)
     
    2
    (Al,Si)
     
    7
    O
     
    10
    (CO
     
    3
    )(OH)
     
    6
    ·nH
     
    2
    O
    9.EC.80Kegelite
    Pb
     
    12
    (Zn,Fe)
     
    2
    Al
     
    4
    (SO
     
    4
    )
     
    4
    Si
     
    11
    O
     
    38
    or near

    Other Names for Oxykinoshitalite

    Synonyms:
    IMA2004-013
    German names:
    Oxykinoshitalith

    Other Information

    Fluorescence in UV light:None
    Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

    References for Oxykinoshitalite

    Reference List:Kogarko, L.N., Uvarova, Yu.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. Canadian Mineralogist, 43, 1501-1510.

    Internet Links for Oxykinoshitalite

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  • Raman and XRD data at RRUFF project
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    Localities for Oxykinoshitalite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Brazil
     
    • Northeast Region
      • Pernambuco
    L. N. Kogarko et al.: Can. Min. 43:1501-1510 (2005)
    Mineral and/or Locality
    Google
     
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