Ludlamite R090071
Name: Ludlamite
RRUFF ID: R090071
Ideal Chemistry: Fe2+3(PO4)2·4H2O
Locality: Cigana Mine (ex-Jocão Mine), Galiléia, Minas Gerais Brazil
Source: Royal Ontario Museum M54960 [view label]
Owner: RRUFF
Description: Groups of colorless tabular crystals on reddish-brown reddingite R090069, associated with pink hureaulite R090070.
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Quick search: [ All Ludlamite samples (3) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R090071
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R090071.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.609(2)Å    b: 4.680(2)Å    c: 9.369(3)Å
alpha: 90°    beta: 100.51(2)°    gamma: 90°   Volume: 457.4(2)Å3    Crystal System: monoclinic
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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 Ludlamite

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]

Field F (1885) On ludlamite, a new Cornish mineral, Mineralogical Magazine, 6, 23-31   [view file]

Ito T, Mori H (1951) The crystal structure of ludlamite, Acta Crystallographica, 4, 412-416

Fleischer M (1955) New mineral names, American Mineralogist, 40, 941-944   [view file]

Abrahams S C, Bernstein J L (1966) Crystal structure of paramagnetic ludlamite, Fe3(PO4)2·4(H2O), at 298°K, Journal of Chemical Physics, 44, 2223-2229

Abrahams S C (1966) Ferromagnetic and crystal structure of ludlamite, Fe3(PO4)2·4(H2O), at 4.2°K, Journal of Chemical Physics, 44, 2230-2237

Mattievich E and Danon J (1977) Hydrothermal synthesis and Mössbauer studies of ferrous phosphates of the homologous series Fe32+(PO4)2(H2O)n, Journal of Inorganic and Nuclear Chemistry, 39, 569-580

Dyar M D, Jawin E R, Breves E, Marchand G, Nelms M, Lane M D, Mertzman S A, Bish D L and Bishop J L (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data, American Mineralogist, 99, 914-942   [view file]