Posnjakite R110172
Name: Posnjakite
RRUFF ID: R110172
Ideal Chemistry: Cu4(SO4)(OH)6·H2O
Locality: Yellow Rose of Texas mine, Animas District, San Juan County, Colorado, USA
Source: George Stevens [view label]
Owner: RRUFF
Description: Blocky light blue crystals associated with dark blue linarite
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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RRUFF ID: R110172
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
POWDER DIFFRACTION 
RRUFF ID: R110172.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.576(1)Å    b: 6.3354(7)Å    c: 7.861(1)Å
alpha: 90°    beta: 117.983(6)°    gamma: 90°   Volume: 465.1(1)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 Posnjakite

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]

Fleischer M (1967) New mineral names, American Mineralogist, 52, 1579-1589   [view file]

Komkov A I, Nefedov E I (1967) Posnjakite, a new mineral, Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 96, issue 1 58-62   [view file]

Mellini M, Merlino S (1979) Posnjakite: 2∞[Cu4(OH)6(H2O)O] octahedral sheets in its structure, Zeitschrift für Kristallographie, 149, 249-257   [view file]

Iakhontova L K (1981) New data on posnjakite, serpeirite and woodwardite, Doklady Akademii Nauk SSSR, 256, 1221-1225   [view file]

Dunn P J, Fleischer M, Chao G Y, Cabri L J, Mandarino J A (1983) New mineral names, American Mineralogist, 68, 1248-1252   [view file]

Frost R L (2003) Raman spectroscopy of selected copper minerals of significance in corrosion, Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 59, 1195-1204

Martens W, Frost R L, Kloprogge J T, Williams P A (2003) Raman spectroscopic study of the basic copper sulphates - implications for copper corrosion and ‘bronze disease’, Journal of Raman Spectroscopy, 34, 145-151

Frost R L, Williams P A, Martens W, Leverett P, Kloprogge J T (2004) Raman spectroscopy of basic copper (II) and some complex copper (II) sulfate minerals: Implications for hydrogen bonding, American Mineralogist, 89, 1130-1137   [view file]

Markl G, Keim M F, Bayerl R (2019) Unusual mineral diversity in hydrothermal vein-type deposit: The Clara mine, SW Germany, as a type example, The Canadian Mineralogist, 57, 427-456