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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 | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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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 |
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REFERENCES for Dingdaohengite-(Ce) | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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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] |
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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] |
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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] |
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