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Pharmacosiderite R070587

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Record 2 of 2  


Name: Pharmacosiderite
RRUFF ID: R070587
Ideal Chemistry: KFe3+4(AsO4)3(OH)4·6-7H2O
Locality: Mylar mine, Majuba Hill, Antelope District, Pershing County, Nevada, USA
Source: James Shigley [view label]
Owner: RRUFF
Description: Aggregates of green and brown cubic crystals associated with gypsum
Status: The identification of this mineral is not yet confirmed.
Mineral Group: [ pharmacosiderite (4) ]
Quick search: [ All Pharmacosiderite samples (2) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070587
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R070587.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 11.283(1)Å    b: 11.283(1)Å    c: 7.991(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1017.4(1)Å3    Crystal System: tetragonal
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REFERENCES for Pharmacosiderite

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]

Hausmann J F L (1813) Pharmakosiderit, in Handbuch der Mineralogie, Volume 3 Göttingen 1065-1067   [view file]

Zemann J (1948) Formel und strukturtyp des pharmakosiderits, Tschermaks Mineralogische und Petrographische Mitteilungen, 1, 1-13

Buerger M J, Dollase W A, Garaycochea-Wittke I (1967) The structure and composition of the mineral pharmacosiderite, Zeitschrift für Kristallographie, 125, 92-108   [view file]

Mills S J, Hager S L, Leverett P, Williams P A, Raudsepp M (2010) The structure of H3O+ - exchanged pharmacosiderite, Mineralogical Magazine, 74, 487-492   [view file]

Rumsey M S, Mills S J, Spratt J (2010) Natropharmacoalumite, NaAl4[(OH)4(AsO4)3]·4H2O, a new mineral of the pharmacosiderite supergroup and the renaming of aluminopharmacosiderite to pharmacoalumite, Mineralogical Magazine, 74, 929-936   [view file]

Majzlan J, Haase P, Plášil J, Dachs E (2019) Synthesis and stability of some members of the pharmacosiderite group, AFe4(OH)4(AsO4)3·nH2O (A = K, Na, 0.5Ba, 0.5Sr), The Canadian Mineralogist, 57, 663-675