Akatoreite R060230



Name: Akatoreite
RRUFF ID: R060230
Ideal Chemistry: Mn2+9Al2Si8O24(OH)8
Locality: near mouth of Akatore Creek, Taieri, Otago Province, New Zealand
Source: Michael Scott S100146 [view label]
Owner: RRUFF
Description: Orange-brown massive
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
CHEMISTRY 
RRUFF ID: R060230.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mn2+8.66Mg0.12Fe2+0.09Fe3+0.09Ca0.04)Σ=9(Al1.87Cr0.13)Σ=2(Si7.91Al0.09)Σ=8O24(OH)8 ; OH estimated by difference and stoichiometry ; Fe2 and Fe3 by charge balance
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
DOWNLOADS:

  To download sample data,
  please select a specific
  orientation angle.

Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060230
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060230.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.320(2)Å    b: 10.346(3)Å    c: 7.614(2)Å
alpha: 104.52(1)°    beta: 93.76(1)°    gamma: 104.13(1)°   Volume: 609.6(4)Å3    Crystal System: triclinic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

X Min:    X Max:    X Sort:
REFERENCES for Akatoreite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Read P B, Reay A (1971) Akatoreite, a new manganese silicate from eastern Otago, New Zealand, American Mineralogist, 56, 416-426   [view file]

Burns P C, Hawthorne F C (1993) Edge–sharing Mn2+O4 tetrahedra in the structure of akatoreite, Mn2+9Al2Si8O24(OH)8, The Canadian Mineralogist, 31, 321-329   [view file]

Jambor J L, Grew E S (1994) New mineral names, American Mineralogist, 79, 185-189   [view file]