Richterite R050414

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Record 77 of 105  

Name: Richterite
RRUFF ID: R050414
Ideal Chemistry: Na(NaCa)Mg5Si8O22(OH)2
Locality: Kokcha Valley, Badakhshan, Afghanistan
Source: Marcus Origlieri
Owner: RRUFF
Description: Transparent pale yellowish-green bladed crystal
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ amphibole (105) ]
Quick search: [ All Richterite samples (6) ]
RRUFF ID: R050414.2
Sample Description: Microprobe fragment
Measured Chemistry: (Na0.67K0.33)Σ=1(Ca1.19Na0.81)Σ=2Mg5.00(Si7.80Al0.19Ti0.01)Σ=8O22((OH)1.58F0.42)Σ=2
Sample Description: Unoriented sample

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RRUFF ID: R050414
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 30% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050414.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
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RRUFF ID: R050414.1
Sample Description: Powder
Cell Refinement Output: a: 9.9977(4)Å    b: 17.9728(8)Å    c: 5.2690(2)Å
alpha: 90°    beta: 106.118(4)°    gamma: 90°   Volume: 909.54(5)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 Richterite

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]

Breithaupt J F A (1865) Mineralogische studien. 25. Richterit, Berg- und Huttenmannische Zeitung, 24, 364-364   [view file]

Leake B E (1978) Nomenclature of amphiboles, American Mineralogist, 63, 1023-1052   [view file]

Goldman D S, Rossman G R (1982) The identification of Fe2+ in the M4 site of calcic amphiboles: reply, American Mineralogist, 67, 340-342   [view file]

Oberti R, Ungaretti L, Cannillo E, Hawthorne F C (1992) The behaviour of Ti in amphiboles: I. Four- and six-coordinate Ti in richterite, European Journal of Mineralogy, 4, 425-439

Oberti R, Hawthorne F C, Ungaretti L, Cannillo E (1993) The behaviour of Mn in amphiboles: Mn in richterite, European Journal of Mineralogy, 5, 43-51

Robert J L, Della Ventura G, Raudsepp M, Hawthorne F C (1993) Rietveld structure refinement of synthetic strontium-rich potassium-richterites, European Journal of Mineralogy, 5, 199-206

Hawthorne F C, Della Ventura G, Robert J L, Welch M D, Raudsepp M, Jenkins D M (1997) A Rietveld and infrared study of synthetic amphiboles along the potassium-richterite-tremolite join, American Mineralogist, 82, 708-716   [view file]

Robert J L, Della Ventura G, Hawthorne F C (1999) Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles, American Mineralogist, 84, 86-91   [view file]

Hawthorne F C, Oberti R, Zanetti A (2008) The crystal chemistry of alkali amphiboles from the Kajlidongri Manganese Mine, India, The Canadian Mineralogist, 46, 455-466   [view file]

Oberti R, Boiocchi M, Zema M, Ventura G D (2016) Synthetic potassic-ferro-richterite: 1. Composition, crystal structure refinement, and HT Behavior by in operando single-crystal x-ray diffraction, The Canadian Mineralogist, 54, 353-369

Ventura G D, Redhammer G J, Robert J, Sergent J, Iezzi G, Cavallo A (2016) Crystal-chemistry of synthetic amphiboles along the richterite—ferro-richterite join: A combined spectroscopic (FTIR, Mössbauer), XRPD, and microchemical study, The Canadian Mineralogist, 54, 97-114