Davidite-(La) R070698

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Name: Davidite-(La)
RRUFF ID: R070698
Ideal Chemistry: La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Locality: Pandora prospect, Covered Wells, Quijotoa District, Quijotoa Mts, Pima County, Arizona, USA
Source: Michael Scott S101999 [view label]
Owner: RRUFF
Description: Black submetallic massive
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ crichtonite (8) ]
Quick search: [ All Davidite-(La) samples (3) ]
RRUFF ID: R070698.2
Sample Description: Microprobe Fragment
Measured Chemistry: (La0.48Ce0.35Nd0.03Pr0.01Ca0.13)∑=1.00(U0.32Y0.23Sc0.07Ca0.07Th0.05)∑=0.74Fe2(Ti12.42Fe4.24Mg0.29Cr0.25Al0.18Zr0.07Mn0.05)∑=17.50O38
Microprobe Data File: [ Download Excel File ]
Sample Description: Unoriented sample

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RRUFF ID: R070698
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R070698.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 9.222(6)Å    b: 9.222(6)Å    c: 9.222(6)Å
alpha: 68.488(3)°    beta: 68.488(3)°    gamma: 68.488(3)°   Volume: 654(2)Å3    Crystal System: rhombohedral
  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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REFERENCES for Davidite-(La)

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]

Mawson D (1906) On certain new mineral species associated with carnotite in the radio-active ore body near Olary, Transactions of the Royal Society of South Australia, 30, 188-193   [view file]

Pabst A (1961) X-ray crystallography of davidite, American Mineralogist, 46, 700-718   [view file]

Fleischer M (1964) New mineral names, American Mineralogist, 49, 439-448   [view file]

Levinson A A (1966) A system of nomenclature for rare-earth minerals, American Mineralogist, 51, 152-158   [view file]

Gatehouse B M, Grey I E, Kelly P R (1979) The crystal structure of davidite, American Mineralogist, 64, 1010-1017   [view file]

Nickel E H, Mandarino J A (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature, American Mineralogist, 72, 1031-1042   [view file]

Wülser P-A, Brugger J, Meisser N (2004) The crichtonite group of minerals: a review of the classification, Bulletin de liaison de la Société Francaise de Minéralogie et Cristallographie, 16, 76-77   [view file]