Kanoite Mineral Data

General Kanoite Information

Chemical Formula:

(Mn++,Mg)2Si2O6

Composition:

Molecular Weight = 246.73 gm

Magnesium 4.93 % Mg 8.17 % MgO

Manganese 33.40 % Mn 43.13 % MnO

Silicon 22.77 % Si 48.71 % SiO₂

Oxygen 38.91 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺_1.5Mg_0.5Si₂O₆

Environment:

In a seam cutting a pyroxmangite-cummingtonite metamorphic rock.

IMA Status:

Approved IMA 1977

Locality:

From near Tatehira, Oshima Peninsula, Hokkaido, Japan. Link to MinDat.org Location Data.

Name Origin:

Named for Hiroshi Kano, Professor of Petrology, Akita University, Akita, Japan.

Name Pronunciation:

Kanoite

Synonym:

ICSD 100757

PDF 29-865

Kanoite Image

Images:

Kanoite

Comments: Brown, prismatic crystals of kanoite in matrix.
Location: Tatehira, Oshima Peninsula, Hokkaido, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kanoite Crystallography

Axial Ratios:

a:b:c =1.0894:1:0.5884

Cell Dimensions:

a = 9.739, b = 8.939, c = 5.26, Z = 4; beta = 108.56° V = 434.10 Den(Calc)= 3.77

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.21(1), 2.91(0.9), 3.02(0.9),

Crystal Structure:

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Gordon W A , Peacor D R , Brown P E , Essene E J , Allard L F , American Mineralogist , 66 (1981) p.127-141, Exsolution relationship in a clinopyroxene of average composition, Ca0.43Mn0.69Mg0.82Si2O6: X-ray diffraction and analytical electron microscopy

View Additional jPOWD Structure files for Kanoite
[1] [2] [3] [4] [5]

Physical Properties of Kanoite

Cleavage:

{???} Perfect

Color:

Pink brown, Reddish brown.

Density:

3.66

Diaphaneity:

Transparent to Translucent

Hardness:

6-7 - Orthoclase-Quartz

Luster:

Vitreous (Glassy)

Streak:

light brown

Optical Properties of Kanoite

Gladstone-Dale:

CI meas= 0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.058 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1908,KPDmeas= 0.1965,KC= 0.2026
Ncalc = 1.74 - 1.76

Optical Data:

Biaxial (+), a=1.715, b=1.715, g=1.728, bire=0.0130, 2V(Calc)=0, 2V(Meas)=40-42.

Calculated Properties of Kanoite

Electron Density:

Bulk Density (Electron Density)=3.55 gm/cc
note: Specific Gravity of Kanoite =3.66 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Kanoite= 9.51 barns/electron
U=PE_Kanoite x rElectron Density= 33.73 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kanoite is Not Radioactive

Kanoite Classification

Dana Class:

65.01.01.03 (65)Inosilicate Single-Width Unbranched Chains, W=1

(65.01)with chains P=2

(65.01.01)P2/c clinopyroxenes

65.01.01.01 Clinoenstatite Mg2Si2O6 P 2₁/c 2/m

65.01.01.02 Clinoferrosilite (Fe,Mg)2Si2O6 P 2₁/c 2/m

65.01.01.03 Kanoite (Mn,Mg)2Si2O6 P 2₁/c 2/m

65.01.01.04 Pigeonite (Mg,Fe,Ca)(Mg,Fe)Si2O6 P 2₁/c 2/m

Strunz Class:

09.DA.10 09 - SILICATES (Germanates)

09.D - Inosilicates* Structural terminology according to Liebau (1985)

09.DA -Inosilicates with 2-periodic single chains, Si2O6; pyroxene family

09.DA.10 Clinoenstatite Mg2Si2O6 P 2₁/c 2/m

09.DA.10 Clinoferrosilite (Fe,Mg)2Si2O6 P 2₁/c 2/m

09.DA.10 Kanoite (Mn,Mg)2Si2O6 P 2₁/c 2/m

09.DA.10 Pigeonite (Mg,Fe,Ca)(Mg,Fe)Si2O6 P 2₁/c 2/m

Other Kanoite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Kanoite :
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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Print or Cut-and-Paste your Kanoite Specimen Label here :

Kanoite

(Mn++,Mg)2Si2O6
Dana No: 65.01.01.03 Strunz No: 09.DA.10
Locality:

Notes: