Important Update News

The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.

We are grateful to NASA for the funding of this effort.

Vermiculite R050490

Browse Search Results 
<< Previous |  Back to Search Results |  Next >> 
Record 452 of 470  

Name: Vermiculite
RRUFF ID: R050490
Ideal Chemistry: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O
Locality: near Tonopah, Nevada, USA
Source: California Institute of Technology W-20939
Owner: RRUFF
Description: Dark green micaceous fragment
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Groups: [ Clay (86) ] [ Smectite-vermiculite (7) ]
CHEMISTRY 
RRUFF ID: R050490.2
Sample Description: Microprobe fragment
Measured Chemistry: (Mg2.26Fe3+0.25Al0.25Ca0.24)Σ=3(Si3.50Al0.50)Σ=4O10((OH)1.90F0.10)Σ=2·4H2O
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
DOWNLOADS:

  To download sample data,
  please select a specific
  orientation angle.
Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050490
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
DOWNLOADS:

Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050490.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
DOWNLOADS:

Infrared Data (Processed)
RRUFF File
X Min:    X Max:    X Sort:
POWDER DIFFRACTION 
RRUFF ID: R050490.1
Sample Description: Powder, cell parameters are from single crystal
Cell Refinement Output: a: 5.35(1)Å    b: 9.28(2)Å    c: 29.77(9)Å
alpha: 90°    beta: 92.5(1)°    gamma: 90°   Volume: 1477(3)Å3    Crystal System: monoclinic
  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.

DOWNLOADS:

X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
X Min:    X Max:    X Sort:
REFERENCES for Vermiculite

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]

Webb T H (1824) New localities of tourmalines and talc, American Journal of Science and Arts, 7, 55-55   [view file]

Shirozu H, Bailey S W (1966) Crystal structure of a two-layer Mg-vermiculite, American Mineralogist, 51, 1124-1143   [view file]

Ruiz Cruz M D, Nieto J M (2006) Chemical and structural evolution of "metamorphic vermiculite" in metaclastic rocks of the Betic Cordillera, Málaga, Spain: a synthesis, The Canadian Mineralogist, 44, 249-265   [view file]

Arguelles A, Leoni M, Blanco J A, Marco C (2010) Semi-ordered crystalline structure of the Santa Olalla vermiculite inferred from X-ray powdered diffraction, American Mineralogist, 95, 126-134   [view file]

Gailhanou H, Blanc P, Rogez J, Mikaelian G, Horiuchi K, Yamamura Y, Saito K, Kawaji H, Warmont F, Grenèche J M, Vieillard P, Fialips C I, Giffaut E, Gaucher E C (2013) Thermodynamic properties of saponite, nontronite, and vermiculite derived from calorimetric measurements, American Mineralogist, 98, 1834-1847

Martos-Villa R, Guggenheim S, Sainz-Díaz C I (2013) Interlayer water molecules in organocation-exchanged vermiculite and montmorillonite: A case study of tetramethylammonium, American Mineralogist, 98, 1535-1542