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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orientation angle.

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R150046

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	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

Calculated diffraction file.

File Type Information

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

DOWNLOADS:

	DIF File
	X-ray Data (XY - RAW)
	RRUFF File

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]