Fredrikssonite R130112

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Name: Fredrikssonite
RRUFF ID: R130112
Ideal Chemistry: Mg2Mn3+O2(BO3)
Locality: Langban, Filipstad, Varmland, Sweden
Source: Rock Currier [view label]
Owner: RRUFF
Description: Opaque reddish black striated prismatic crystals, associated with calcite and granular hausmannite.
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Ludwigite (5) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R130112
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R130112.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 9.200(2)Å    b: 12.532(3)Å    c: 2.9598(5)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 341.27(8)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 Fredrikssonite

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]

Dunn P J, Peacor D R, Simmons W B, Newbury D (1983) Fredrikssonite, a new member of the pinakiolite group, from Långban, Sweden, Geologiska Föreningens i Stockholm Förhandlingar, 105, 335-340

Dunn P J, Chao G Y, Fitzpatrick J J, Langley R H, Fleischer M, Zilczer J A (1986) New mineral names, American Mineralogist, 71, 227-232   [view file]

Burns P C, Cooper M A, Hawthorne F C (1994) Jahn–Teller-distorted Mn3+O6 octahedra in fredrikssonite, the fourth polymorph of Mg2Mn3+(BO3)O2, The Canadian Mineralogist, 32, 397-403   [view file]

Cooper M A, Hawthorne F C (1998) The crystal structure of blatterite, Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32, and structural hierarchy in Mn3+-bearing zigzag borates, The Canadian Mineralogist, 36, 1171-1193   [view file]

Frost R L (2011) Raman spectroscopy of selected borate minerals of the pinakiolité group, Journal of Raman Spectroscopy, 42, 540-543