Pickeringite R060108

Name: Pickeringite
RRUFF ID: R060108
Ideal Chemistry: MgAl2(SO4)4·22H2O
Locality: Tucumcari, New Mexico, USA
Source: University of Arizona Mineral Museum 4989 [view label]
Owner: RRUFF
Description: Colorless acicular aggregates
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Halotrichite (7) ]
RRUFF ID: R060108.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg0.88Mn0.12)Σ=1Al2.00(S1.00O4)4·22H2O
Sample Description: Unoriented sample

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RRUFF ID: R060108
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R060108.1
Sample Description: Powder
Cell Refinement Output: a: 6.180(1)Å    b: 24.268(4)Å    c: 21.217(4)Å
alpha: 90°    beta: 100.31(1)°    gamma: 90°   Volume: 3130.9(6)Å3    Crystal System: monoclinic
  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.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Pickeringite

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]

Hayes A A (1844) Description and analysis of pickeringite, a native magnesian alum, American Journal of Science and Arts, 46, 360-362   [view file]

Schulze H (1889) Mineralogisches aus Tarapacá, Verhandlungen des Deutschen Wissenschaftlichen Vereines zu Santiago, 2, 49-60   [view file]

Larsen E S (1921) The microscopic determination of the nonopaque minerals, U.S. Geological Survey Bulletin, 671, 5-294   [view file]

Gordon S G (1942) Results of the Chilean mineralogical expedition of 1938. Part VII.—The crystallography of alunogen, meta-alunogen and pickeringite, Notulae Naturae of The Academy of Natural Sciences of Philadelphia, 101, 1-9

Quartieri S, Triscari M, Viani A (2000) Crystal structure of the hydrated sulphate pickeringite (MgAl2(SO4)4·22H2O): X-ray powder diffraction study, European Journal of Mineralogy, 12, 1131-1138

Lane M D (2007) Mid-infrared emission spectroscopy of sulfate and sulfate-bearing minerals, American Mineralogist, 92, 1-18   [view file]

Mauro D, Biagioni C, Pasero M, Skogby H (2019) Crystal-chemistry of sulfates From the Apuan Alps (Tuscany, Italy). III. Mg-rich sulfate assemblages from the Fornovolasco mining complex, Atti della Società Toscana di Scienze Naturali, Memorie, Serie A, 126, 33-44