Dioptase R040028

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Record 1095 of 4034  

Name: Dioptase
RRUFF ID: R040028
Ideal Chemistry: CuSiO3·H2O
Locality: Tantara mine, Democratic Republic of the Congo
Source: University of Arizona Mineral Museum 8501 [view label]
Owner: RRUFF
Description: Bluish green coarsely crystallized fragment
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Dioptase samples (3) ]
CHEMISTRY 
RRUFF ID: R040028.2
Sample Description: Microprobe Fragment
Measured Chemistry: Cu1.00Si1.00O3┬ĚH2O; H2O estimated by difference
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: M00307
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  b   [0 1 0].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040028
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040028.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040028.1
Sample Description: Powder
Cell Refinement Output: a: 14.5757(2)Å    b: 14.5757(2)Å    c: 7.7810(2)Å
alpha: 90.°    beta: 90.°    gamma: 120.°   Volume: 1431.62(4)Å3    Crystal System: hexagonal
  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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REFERENCES for Dioptase

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]

Delamétherie J C (1793) De la cristallisation d'une émeraude, Observations sur la Physique, sur l’Histoire Naturelle et sur les Arts, 42, 154-154   [view file]

Haüy R J (1797) Dioptase (N.N.), c'est-à-dire, visible au travers, Journal des Mines, 5, 274-275   [view file]

Hauy C (1798) Sur la dioptase, Bulletin des Science, par la Société Philomathique, 1798, 101-101   [view file]

Vauquelin L N (1798) De la dioptase de Hauy, émeraudine de delamétherie. Essai dur la dioptase, Observations sur la Physique, sur l’Histoire Naturelle et sur les Arts, 46, 301-302   [view file]

Belov N V (1957) New silicate structures, Acta Crystallographica, 10, 757-758

Adams D M, Gardner I R (1974) Single-crystal vibrational spectra of beryl and dioptase, Dalton Transactions, 1974, 1502-1505

Belov N V, Maksimov B A, Nozik Y Z, Muradyan L A (1978) The refinement of the crystal structure of dioptase Cu6(Si6O18)(H2O)6 by the X-ray and neutron diffraction methods, Doklady Akademii Nauk SSSR, 239, 842-845   [view file]

McKeown D A, Kim C C, Bell M I (1995) Vibrational analysis of dioptase Cu6Si6O18·6(H2O) and its puckered six-member ring, Physics and Chemistry of Minerals, 22, 137-144

Goryainov S V (1996) Dehydration-induced changes in the vibrational states of dioptase, Journal of Structural Chemistry, 37, 58-64

Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970   [view file]

Stebbins F J (2017) Toward the wider application of 29Si NMR spectroscopy to paramagnetic transition metal silicate minerals: copper (II) silicates, American Mineralogist, 102, 2406-2414

Qin F, Wu X, Qin S, Zhang D, Prakapenka V B, Jacobsen S D (2018) Pressure-induced dehydration of dioptase: A single-crystal X-ray diffraction and Raman spectroscopy study, Comptes Rendus Geoscience, In Press, 1-8   [link]