Mineral Information and Data:

Kanoite
Mn2+MgSi2O6 [CNMNC approved formula]

Named for Hiroshi Kano, Professor of Petrology, Akita University, Akita, Japan, for his geological and petrographical contributions to metamorphic rocks in Japan especially those forming the basement of Japanese Islands.

IMA status : Approved Species 1977 ()
CLASSIFICATION 
Dana
(8th edition) :
65.01.01.03  
  (65) Inosilicate Single-Width Unbranched Chains, W=1
  (65.01) with chains P=2
  (65.01.01) P2/c clinopyroxenes
  
Nickel-Strunz
(10th edition) :
09.DA.10
  (09) Silicates
  (09.D) Inosilicates* Structural terminology per Liebau (1985)
  (09.DA) with 2-periodic single chains, Si2O6; pyroxene family
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
Space group: P21/b
Unit cell: a = 9.73Å, b = 8.93Å, c = 5.26Å, β = 108.56° Z=4
Crystal Habit: As grains up to 0.1 mm.
Twinning: Polysynthetic on {100}, common.
  
Color: Light pinkish brown; colorless in thin section
Diaphaneity: Semitransparent
Luster: Vitreous.
Hardness (Mohs): 6
Measured Density: 3.66 g/cm3
Cleavage: Perfect on {110}, (110) ^ (110) ~88°
Streak: White
  
Polymorphism and Series: Dimorphous with donpeacorite.
Geologic Setting: In a seam cutting a pyroxmangite-cummingtonite metamorphic rock.
Mineral Association: Spessartine, manganoan cummingtonite, pyroxmangite
  

 

Kanoite
Yellowish brown granular aggregate.
Mineral identification confirmed by X-ray diffraction and chemical analysis.
Origin: Balmat, St. Lawrence County, New York, USA.
Photo: © RRUFF Project

 

Kanoite
(zoom-in of above)

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