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Dingdaohengite-(Ce) R150046
Name: Dingdaohengite-(Ce)
RRUFF ID: R150046
Ideal Chemistry: (Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe3+)2Ti2Si4O22
Locality: Mulanje Massif, Malawi
Source: Paul Botha [view label]
Owner: RRUFF
Description: Dark brown striated prismatic crystals, associated with quartz
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Chevkinite (4) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R150046
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: R150046.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 13.4256(14)Å    b: 5.7515(7)Å    c: 11.0996(12)Å
alpha: 90°    beta: 100.6335(68)°    gamma: 90°   Volume: 842.26(17)Å3    Crystal System: monoclinic
  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.

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

American Mineralogist Crystal Structure Database Record: [view record]

Li G, Yang G, Ma Z, Shi N, Xiong M, Sheng G, Fan H (2005) The crystal structure of a new mineral dingdaohengite-(Ce) (in Chinese), Kuangwu Xuebao, 25, 313-320   [view file]

Xu J, Yang G, Li G, Wu Z, Shen G (2008) Dingdaohengite-(Ce) from the Bayan Obo REE-Nb-Fe Mine, China: Both a true polymorph of perrierite-(Ce) and a titanic analog at the C1 site of chevkinite subgroup, American Mineralogist, 93, 740-744   [view file]

Macdonald R, Bagiński B, Belkin H E, Stachowicz M (2019) Composition, paragenesis, and alteration of the chevkinite group of minerals, American Mineralogist, 104, 348-369   [view file]