Kotoite R060940
Name: Kotoite
RRUFF ID: R060940
Ideal Chemistry: Mg3(BO3)2
Locality: Hol Kol mine, Samdung, near Pyongyang, Suan County, North Korea
Source: Michael Scott S101243 [view label]
Owner: RRUFF
Description: Aggregate of pale green micro grains
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
CHEMISTRY 
RRUFF ID: R060940.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg2.98Fe0.02)Σ=3(BO3)2 ; trace amounts of Mn; B2O3 estimated by difference
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060940
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R060940.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.393(2)Å    b: 8.418(2)Å    c: 4.504(2)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 204.5(4)Å3    Crystal System: orthorhombic
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Kotoite

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]

Foshag W F (1939) New mineral names, American Mineralogist, 24, 406-406   [view file]

Watanabe T (1939) Kotoit, ein neues gesteinsbildendes Magnesiumborat, Mineralogische und Petrographische Mitteilungen, 50, 441-463   [view file]

Effenberger H, Pertlik F (1984) Verfeinerung der kristallstrukturen der isotypen verbindungen M3(BO3)2 mit M=Mg, Co und Ni (strukturtyp: kotoit), Zeitschrift für Kristallographie, 166, 129-140   [view file]