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Metavivianite R130545
Name: Metavivianite
RRUFF ID: R130545
Ideal Chemistry: Fe2+Fe3+2(PO4)2(OH)2·6H2O
Locality: Rapid Creek, Yukon Territory, Canada
Source: Rock Currier [view label]
Owner: RRUFF
Description: Dull olive-green platy mass, associated with masses of brighter green acicular gormanite on brown siderite. Metavivianite is twinned around [1 -1 0].
Status: The identification of this mineral is not yet confirmed.
Mineral Group: [ Symplesite (4) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R130545
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 50% of 150mW
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Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R130545.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 7.8525(9)Å    b: 9.127(2)Å    c: 4.660(2)Å
alpha: 93.70(3)°    beta: 97.76(3)°    gamma: 108.33(3)°   Volume: 312.1(2)Å3    Crystal System: triclinic
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REFERENCES for Metavivianite

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]

Ritz C, Essene E J, Peacor D R (1974) Metavivianite, Fe3(PO4)2·8H2O, a new mineral, American Mineralogist, 59, 896-899   [view file]

Fleischer M, Cabri L J, Chao G Y, Pabst A (1980) New mineral names, American Mineralogist, 65, 1065-1070   [view file]

Cabri L J, Fleischer M, Pabst A (1981) New mineral names, American Mineralogist, 66, 1099-1103   [view file]

Dormann J L, Gaspérin M, Poullen J F (1982) Étude structurale de la séquence d‘oxydationde la vivianite Fe3(PO4)2·8H2O, Bulletin de Minéralogie, 105, 147-160

Sameshima T, Henderson G S, Black P M, Rodgers K A (1985) X-ray diffraction studies of vivianite, metavivianite, and barićite, Mineralogical Magazine, 49, 81-85   [view file]

Rodgers K A (1986) Metavivianite and kerchenite: a review, Mineralogical Magazine, 50, 687-691   [view file]

Hawthorne F C, Bladh K W, Burke E A J, Grew E S, Langley R H, Puciewicz J, Roberts A C, Schedler R A, Shigley J E, Vanko D A (1987) New mineral names, American Mineralogist, 72, 222-230   [view file]

Jambor J L (1988) New mineral names, American Mineralogist, 73, 666-667   [view file]

Frost R L, Weier M, Lyon W G (2004) Metavivianite an intermediate mineral phase between vivianite, and ferro/ferristrunzite - a Raman spectroscopic study, Neues Jahrbuch für Mineralogie, Monatshefte, 2004, 228-240   [link]

Chukanov N V, Scholz R, Aksenov S M, Rastsvetaeva R K, Pekov I V, Belakovskiy D I, Krambrock K, Paniago R M, Righi A, Martins R F, Belotti F M, Bermanec V (2012) Metavivianite, Fe2+Fe3+2(PO4)2(OH)2·6H2O: new data and formula revision, Mineralogical Magazine, 76, 725-741   [view file]

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]