Kröhnkite R050604

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Record 2 of 18  


Name: Kröhnkite
RRUFF ID: R050604
Ideal Chemistry: Na2Cu(SO4)2·2H2O
Locality: Chuquicamata, Chile
Source: University of Arizona Mineral Museum
Owner: RRUFF
Description: Green elongated prismatic crystals with orange natrojarosite and minor colorless leightonite
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Roselite (18) ]
Quick search: [ All Kröhnkite samples (2) ]
CHEMISTRY 
RRUFF ID: R050604.2
Sample Description: Microprobe Fragment
Measured Chemistry: Na2.00Cu1.00(S1.00O4)2·2H2O
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050604
Wavelength:
Sample Description: Unoriented 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
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050604.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
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POWDER DIFFRACTION 
RRUFF ID: R050604.1
Sample Description: Powder
Cell Refinement Output: a: 5.8082(6)Å    b: 12.6628(9)Å    c: 5.5167(5)Å
alpha: 90.°    beta: 108.440(5)°    gamma: 90.°   Volume: 384.91(3)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
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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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Kröhnkite

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]

Domeyko I (1879) Kronnkit, in Mineralojía de Chile Libreria Central de Servat I CA. Santiago, Chile 250-252   [view file]

Palache C, Warren C H (1908) Kröhnkite, Natrochalcite, American Journal of Science, 26, 342-348   [view file]

Palache C, Warren C H (1908) Kröhnkite, natrochalcite (a new mineral), and other sulphates from Chile, American Journal of Science, 176, 342-348   [view file]

Dahlman B (1952) The crystal structures of kröhnkite, CuNa2(SO4)2·2H2O and brandtite, MnCa2(AsO4)2·2H2O, Arkiv för Mineralogi och Geologi, 1, 339-366

Hawthorne F C, Ferguson R B (1975) Refinement of the crystal structure of kröhnkite, Acta Crystallographica, B31, 1753-1755

Fleck M, Kolitsch U, Hertweck B (2002) Natural and synthetic compounds with kröhnkite-type chains: review and classification, Zeitschrift für Kristallographie, 217, 435-443

Majzlan J, Zittlau A H, Grevel K, Schliesser J, Woodfield B F, Dachs E, Števko M, Chovan M, Plášil J, Sejkora J, Milovská S (2015) Thermodynamic properties and phase equilibria of the secondary copper minerals libethenite, olivenite, pseudomalachite, kröhnkite, cyanochroite, and devilline, The Canadian Mineralogist, 53, 937-960

Siidra O I, Lukina E A, Nazarchuk E V, Depmeier W, Bubnova R S, Agakhanov A A, Avdontseva E Y, Filatov S K, Kovrugin V M (2018) Saranchinaite, Na2Cu(SO4)2, a new exhalative mineral from Tolbachik volcano, Kamchatka, Russia, and a product of the reversible dehydration of kröhnkite, Na2Cu(SO4)2(H2O)2, Mineralogical Magazine, 82, 257-274   [view file]