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Kinoshitalite Mineral Data

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General Kinoshitalite Information

Help on Chemical  Formula: Chemical Formula: (Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2
Help on Composition: Composition: Molecular Weight = 485.68 gm
   Potassium   3.22 %  K     3.88 % K2O
   Barium     16.96 %  Ba   18.94 % BaO
   Sodium      0.47 %  Na    0.64 % Na2O
   Magnesium  10.51 %  Mg   17.43 % MgO
   Manganese   5.66 %  Mn    7.30 % MnO
   Aluminum   11.67 %  Al   22.04 % Al2O3
   Silicon    11.57 %  Si   24.74 % SiO2
   Hydrogen    0.42 %  H     3.71 % H2O
   Oxygen     39.53 %  O
             ______        ______ 
             100.00 %       98.68 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba0.6K0.4Na0.1Mg2.1Mn2+0.5Al0.2Si2Al1.9O10(OH)2
Help on Environment: Environment: In hausmannite-tephroite ore.
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: In the Noda-Tanagawa mine, Iwate Prefeture, and at Hokkejino, Kyoto Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Dr. Kameki Kinshita (1896-1974), investigator of ore deposits in Japan.
Help on Name Pronunciation: Name Pronunciation: Kinoshitalite + Pronunciation Say KINOSHITALITE

Kinoshitalite Image

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Comments: Yellowish brown platy crystals of kinshitalite in granular matrix of grayish tephroite.
Location: Hokkejino, Kyoto Prefecture, Kinki Region, Honshu Island, Japan. Scale: See Image.
© Rruff Database

Kinoshitalite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5778:1:1.1081
Help on Cell Dimensions: Cell Dimensions: a = 5.345, b = 9.25, c = 10.25, Z = 2; beta = 99.99° V = 499.09 Den(Calc)= 3.23
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.37(1), 2.02(0.55), 2.52(0.55),

Physical Properties of Kinoshitalite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Yellow brown, Colorless.
Help on Density: Density: 3.3
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Scaly - Morphology like fish scales.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow white

Optical Properties of Kinoshitalite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1945,KPDmeas= 0.1904,KC= 0.192
Ncalc = 1.62 - 1.63
Help on Optical Data: Optical Data: Biaxial (-), a=1.619, b=1.628-1.633, g=1.635, bire=0.0160, 2V(Calc)=40-82, 2V(Meas)=23.
Help on Pleochroism (x): Pleochroism (x): very light yellow.
Help on Pleochroism (y): Pleochroism (y): light brownish yellow.
Help on Pleochroism (z): Pleochroism (z): light brownish yellow.

Calculated Properties of Kinoshitalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.17 gm/cc
note: Specific Gravity of Kinoshitalite =3.30 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEKinoshitalite = 73.64 barns/electron
U=PEKinoshitalite x relectron= 233.45 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 44.65 (Gamma Ray American Petroleum Institute Units)
Concentration of Kinoshitalite per GRapi unit = 2.24 (%)

Estimated Radioactivity from Kinoshitalite - barely detectable


Kinoshitalite Classification

Help on  Dana Class: Dana Class: 71.02.02c.05 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.02)with 2:1 Layers
  (71.02.02c)Mica Group (Margarite subgroup)
71.02.02c.01 Margarite CaAl2(Al2Si2)O10(OH)2 C 2/c 2/m
71.02.02c.02 Clintonite Ca(Mg,Al)3(Al3Si)O10(OH)2 C 2/m 2/m
71.02.02c.03 Bityite CaLiAl2(AlBeSi2)O10(OH)2 C 2/c 2/m
71.02.02c.04 Anandite (Ba,K)(Fe,Mg)3(Si,Al,Fe)4O10(S,OH)2 C 2/m 2/m
71.02.02c.05 Kinoshitalite (Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2 C 2/m 2/m
71.02.02c.06 Ferrokinoshitalite! (Ba,K)(Fe,Mg)3(Si2Al2)O10(OH,F)2 C 2/m 2/m
71.02.02c.07 Ganterite! [Ba0.5(Na,K)0.5]Al2(Si2.5Al1.5O10)(OH)2 C 2/c 2/m
71.02.02c.08 Oxykinoshitalite! (Ba,K)(Mg,Fe,Ti)3(Si,Al)4O10O2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.EC.35 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
09.EC.35 Clintonite Ca(Mg,Al)3(Al3Si)O10(OH)2 C 2/m 2/m
09.EC.35 Bityite CaLiAl2(AlBeSi2)O10(OH)2 C 2/c 2/m
09.EC.35 Anandite (Ba,K)(Fe,Mg)3(Si,Al,Fe)4O10(S,OH)2 C 2/m 2/m
09.EC.35 Kinoshitalite (Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2 C 2/m 2/m
09.EC.35 Ferrokinoshitalite! (Ba,K)(Fe,Mg)3(Si2Al2)O10(OH,F)2 C 2/m 2/m
09.EC.35 Oxykinoshitalite! (Ba,K)(Mg,Fe,Ti)3(Si,Al)4O10O2 C 2/m 2/m

Other Kinoshitalite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: See Also: Links to other databases for Kinoshitalite :
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: 71.02.02c.05 Strunz No: 09.EC.35





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