Cavansite R050400
Name: Cavansite
RRUFF ID: R050400
Ideal Chemistry: Ca(V4+O)(Si4O10)·4H2O
Locality: Poona, India
Source: Eugene Schlepp
Owner: RRUFF
Description: Spray of blue crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
CHEMISTRY 
RRUFF ID: R050400.2
Sample Description: Microprobe fragment
Measured Chemistry: (Ca0.99Mg0.01)Σ=1(V4+1.00O)Si4.00O10·4H2O
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: R050400
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: R050400.1
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: R050400.1
Sample Description: Powder
Cell Refinement Output: a: 9.7876(4)Å    b: 13.6606(5)Å    c: 9.6342(6)Å
alpha: 90.°    beta: 90.°    gamma: 90.°   Volume: 1288.15(7)Å3    Crystal System: orthorhombic
  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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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 Cavansite

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]

Staples L W, Evans H T, Lindsay J R (1967) Cavansite, a new calcium vanadium silicate mineral, Geological Society of America, Abstracts Annual Meetings, 1967, 211-212   [view file]

Fleischer M (1968) New mineral names, American Mineralogist, 53, 507-511   [view file]

Evans H T (1973) The crystal structures of cavansite and pentagonite, American Mineralogist, 58, 412-424   [view file]

Staples L W, Evans H T, Lindsay J R (1973) Cavansite and pentagonite, new dimorphous calcium vanadium silicate minerals from Oregon, American Mineralogist, 58, 405-411   [view file]

Powar K B, Byrappa K (2001) X-ray, thermal and infared studies of cavansite from Wagholi western Maharashtra, India, Journal of Mineralogical and Petrological Sciences, 96, 1-6   [view file]

Ishida N, Kimata M, Nishida N, Hatta T, Shimizu M, Akasaka T (2009) Polymorphic relation between cavansite and pentagonite: Genetic implications of oxonium ion in cavansite, Journal of Mineralogical and Petrological Sciences, 104, 241-252   [view file]

Hughes J M, Derr R S, Cureton F, Campana C F, Druschel G (2011) The crystal structure of cavansite: location of the H2O molecules and hydrogen atoms in Ca(VO)(Si4O10)·4H2O, The Canadian Mineralogist, 49, 1267-1272   [view file]

Danisi R M, Armbruster T, Lazic B (2012) In situ dehydration behavior of zeolite-like cavansite: A single-crystal X-ray study, American Mineralogist, 97, 1874-1880   [view file]

Martucci A, Rodeghero E, Cruciani G (2016) Continuous dehydration of cavansite under dynamic conditions: an in situ synchrotron powder-diffraction study, European Journal of Mineralogy, 28, 5-13