Kanoite
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Formula:
Mn2+MgSi2O6
System:
Monoclinic
Colour:
pinkish brown
Lustre:
Vitreous
Hardness:
6
Member of:
Name:
For Dr. Hiroshi Kano, Akita University, Japan
Dimorph of:
Classification of Kanoite
Approved
8/F.01-30
9.DA.10
9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family
9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family
65.1.1.3
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
14.18.8
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
Physical Properties of Kanoite
Vitreous
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
pinkish brown
Streak:
pale brown to white
Hardness (Mohs):
6
Cleavage:
Perfect
{110}
{110}
Density:
3.66 g/cm3 (Measured) 3.60 g/cm3 (Calculated)
Optical Data of Kanoite
Type:
Biaxial (+)
RI values:
nα = 1.715 nβ = 1.715 nγ = 1.728
2V:
Measured: 40° to 42°
Max Birefringence:
δ = 0.013
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v
Chemical Properties of Kanoite
IMA Formula:
Mn2+MgSi2O6
Elements listed in formula:
Common Impurities:
Al,Fe,Ca,Na,K
Crystallography of Kanoite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 9.73 Å, b = 8.93 Å, c = 5.26 Å
β = 108.56°
β = 108.56°
Ratio:
a:b:c = 1.09 : 1 : 0.589
Unit Cell Volume:
V 433.27 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Grains to 0.1mm
Twinning:
Polysynthetic twinning on {100} is common.
Comment:
Space group probable
Type Occurrence of Kanoite
Place of Conservation of Type Material:
National Science Museum, Tokyo, Japan
Geological Setting of Type Material:
Seam cutting a pyroxmangite-cummingtonite metamorphic rock.
Relationship of Kanoite to other Species
Member of:
Other Members of Group:
| Aegirine | NaFe3+Si2O6 |
| Aegirine-augite | (Na,Ca)(Fe3+,Fe2+,Mg,Al)Si2O6 |
| Augite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Clinoenstatite | MgSiO3 |
| Clinoferrosilite | Fe2+SiO3 |
| Diopside | CaMgSi2O6 |
| Esseneite | CaFe3+[AlSiO6] |
| Hedenbergite | CaFe2+Si2O6 |
| Jadeite | Na(Al,Fe3+)Si2O6 |
| Jervisite | (Na,Ca,Fe2+)(Sc,Mg,Fe2+)Si2O6 |
| Johannsenite | CaMn2+Si2O6 |
| Kosmochlor | NaCrSi2O6 |
| Kushiroite | CaAl[AlSiO6] |
| Namansilite | NaMn3+Si2O6 |
| Natalyite | NaV3+Si2O6 |
| Omphacite | (Ca,Na)(Mg,Al)Si2O6 |
| Petedunnite | Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 |
| Pigeonite | (Mg,Fe2+,Ca)(Mg,Fe2+)Si2O6 |
| Spodumene | LiAlSi2O6 |
| 9.DA.05 | Donpeacorite | Mn2+Mg(SiO3)2 |
| 9.DA.05 | Enstatite | MgSiO3 |
| 9.DA.05 | Ferrosilite | Fe22+Si2O6 |
| 9.DA.10 | Clinoenstatite | MgSiO3 |
| 9.DA.10 | Clinoferrosilite | Fe2+SiO3 |
| 9.DA.10 | Pigeonite | (Mg,Fe,Ca)SiO3 |
| 9.DA.15 | Augite | (Ca,Mg,Fe)2Si2O6 |
| 9.DA.15 | Diopside | CaMgSi2O6 |
| 9.DA.15 | Esseneite | CaFe3+AlSiO6 |
| 9.DA.15 | Hedenbergite | CaFe2+Si2O6 |
| 9.DA.15 | Johannsenite | CaMn2+Si2O6 |
| 9.DA.15 | Petedunnite | CaZnSi2O6 |
| 9.DA.15 | Davisite | CaScAlSiO6 |
| 9.DA.15 | Kushiroite | CaAl(AlSi)O6 |
| 9.DA.15 | Grossmanite | CaTi3+AlSiO6 |
| 9.DA.20 | Aegirine-augite | (Ca,Na)(Fe3+,Mg,Fe2+)Si2O6 |
| 9.DA.20 | Omphacite | (Ca,Na)(Mg,Fe,Al)Si2O6 |
| 9.DA.25 | Aegirine | NaFe3+Si2O6 |
| 9.DA.25 | Jadeite | NaAlSi2O6 |
| 9.DA.25 | Jervisite | NaScSi2O6 |
| 9.DA.25 | Kosmochlor | NaCrSi2O6 |
| 9.DA.25 | Namansilite | NaMn3+Si2O6 |
| 9.DA.25 | Natalyite | NaV3+Si2O6 |
| 9.DA.30 | Spodumene | LiAlSi2O6 |
| 14.18.1 | Nambulite | LiMn42+Si5O14(OH) |
| 14.18.2 | Natronambulite | NaMn42+Si5O14(OH) |
| 14.18.3 | Zakharovite | Na4Mn52+Si10O24(OH)6 · 6H2O |
| 14.18.4 | Norrishite | KLiMn23+Si4O12 |
| 14.18.5 | Shafranovskite | Na3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O |
| 14.18.6 | Abswurmbachite | Cu2+Mn63+O8(SiO4) |
| 14.18.7 | Donpeacorite | Mn2+Mg(SiO3)2 |
| 14.18.9 | Caryopilite | Mn32+Si2O5(OH)4 |
| 14.18.10 | Gonyerite | Mn52+Fe3+(Si3Fe3+O10)(OH)8 |
| 14.18.11 | Tirodite | |
| 14.18.12 | Manganhumite | Mn72+(SiO4)3(OH)2 |
| 14.18.13 | Bustamite | CaMn2+Si2O6 |
| 14.18.14 | Glaucochroite | CaMn2+SiO4 |
| 14.18.15 | Truscottite | Ca14Si24O58(OH)8 · 2H2O |
| 14.18.16 | Santaclaraite | CaMn42+Si5O14(OH)2 · H2O |
| 14.18.17 | Ferrobustamite | CaFe2+Si2O6 |
| 14.18.18 | Johannsenite | CaMn2+Si2O6 |
| 14.18.19 | Neltnerite | CaMn63+O8(SiO4) |
| 14.18.20 | Orlymanite | Ca4Mn32+Si8O20(OH)6 · 2H2O |
| 14.18.21 | Inesite | Ca2Mn72+Si10O28(OH)2 · 5H2O |
| 14.18.22 | Orientite | Ca8Mn103+(SiO4)3(Si3O10)3(OH)10 · 4H2O |
| 14.18.23 | Ruizite | Ca2Mn23+Si4O11(OH)4 · 2H2O |
| 14.18.24 | Bostwickite | CaMn63+Si3O16 · 7H2O |
| 14.18.25 | Kittatinnyite | Ca2(Mn2+,Mn3+)3Si2O8(OH)4 · 9H2O |
| 14.18.26 | Lithiomarsturite | LiCa2Mn22+Si5O14(OH) |
| 14.18.27 | Serandite | NaMn22+Si3O8(OH) |
| 14.18.28 | Kvanefjeldite | Na4CaSi6O14(OH)2 |
| 14.18.29 | Marsturite | NaCaMn32+Si5O14(OH) |
| 14.18.30 | Raite | Na3Mn32+Ti0.25Si8O20(OH)2 · 10H2O |
| 14.18.31 | Richterite | Na2CaMg5Si8O22(OH)2 |
| 14.18.32 | Byelorussite-(Ce) | NaBa2Ce2Mn2+Ti2Si8O26(F,OH) · H2O |
| 14.18.33 | Deerite | Fe62+Fe33+(Si6O17)O3(OH)5 |
| 14.18.34 | Calderite | Mn32+Fe23+(SiO4)3 |
| 14.18.35 | Pyroxmangite | Mn2+SiO3 |
| 14.18.36 | Dannemorite | ☐{Mn22+}{Fe52+}(Si8O22)(OH)2 |
| 14.18.37 | Neotocite | (Mn2+,Fe2+)SiO3 · H2O |
| 14.18.38 | Babingtonite | Ca2Fe2+Fe3+Si5O14(OH) |
| 14.18.39 | Manganbabingtonite | Ca2Mn2+Fe3+Si5O14(OH) |
| 14.18.40 | Örebroite | Mn62+(Fe3+,Sb5+)2(SiO4)2(O,OH)6 |
Other Names for Kanoite
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Kanoite
Reference List:
Clark, J.R., Appleman, D.E., Papike, J.J. (1969) Crystal-chemical characterization of clinopyroxenes based on eight new structure refinements. MSA Special Paper: 2: 31-50.
Kobayashi, H. (1977) Kanoite, (Mn2+,Mg)2[Si2O6], a new clinopyroxene in the metamorphic rock from Tatehira, Oshima Peninsula, Hokkaido, Japan. Chishitsugaku Zasshi: 83: 537-542.
Fleischer, M., Cabri, L.J. (1978) New mineral names. American Mineralogist: 63: 595.
Morimoto, N. (1989) Nomenclature of pyroxenes. The Canadian Mineralogist: 27: 143-156.
Kobayashi, H. (1977) Kanoite, (Mn2+,Mg)2[Si2O6], a new clinopyroxene in the metamorphic rock from Tatehira, Oshima Peninsula, Hokkaido, Japan. Chishitsugaku Zasshi: 83: 537-542.
Fleischer, M., Cabri, L.J. (1978) New mineral names. American Mineralogist: 63: 595.
Morimoto, N. (1989) Nomenclature of pyroxenes. The Canadian Mineralogist: 27: 143-156.
Internet Links for Kanoite
mindat.org URL:
https://www.mindat.org/min-2154.html
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Localities for Kanoite
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
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(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Australia | |
| Birch, W. D., ed. (1999): The minerals of Broken Hill. Broken Hill City Council and Museum of Victoria, Broken Hill, Australia, 289 pp. |
Finland | |
| Heikkilä, Pasi 2003. Vittinki-ryhmän metaserttien geologia ja mineralogia Etelä-Pohjanmaalla. Pro gradu, matemaattis-luonnontieteellinen tiedekunta, Geologian laitos. Helsingin Yliopisto. |
Japan (TL) | |
| Kobayashi, H. (1977): Kanoite, (Mn2+,Mg)2[Si2O6], a new clinopyroxene in the metamorphic rock from Tatehira, Oshima Peninsula, Hokkaido, Japan. Chishitsugaku Zasshi 83, 537-542. |
| Gunnar Farber specimens. |
United Arab Emirates | |
| European Journal of Mineralogy, Vol. 9 , 953-964 |
USA | |
| NY State Museum spec. no. 13664 |
Tatehira mine, Kumaishi, Oshima peninsula, Hokkaido, Japan