Whewellite R070655

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Record 3 of 3  


Name: Whewellite
RRUFF ID: R070655
Ideal Chemistry: CaC2O4·H2O
Locality: Dos Cabezas Ridge, Arizona, USA
Source: University of Arizona Mineral Museum 10529 [view label]
Owner: RRUFF
Description: Colorless elongated prismatic crystals in the decayed pith of a dead agave plant
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Quick search: [ All Whewellite samples (3) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070655
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R070655.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 6.283(5)Å    b: 14.56(1)Å    c: 10.116(6)Å
alpha: 90°    beta: 109.59(2)°    gamma: 90°   Volume: 872(2)    Crystal System: monoclinic
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Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Whewellite

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]

Phillips W, Brooke H J, Miller W H (1852) Whewellite, in An Elementary Introduction to Mineralogy Longman, Brown, Green, and Longmans London 523-524   [view file]

Frondel C (1962) Mineralogical notes: thierschite (=whewellite), American Mineralogist, 47, 786-786   [view file]

International Mineralogical Association (1967) Commission on new minerals and mineral names, Mineralogical Magazine, 36, 131-136   [view file]

Shippey T A (1980) Vibrational studies of calcium oxalate monohydrate (whewellite) and an anhydrous phase of calcium oxalate, Journal of Molecular Structure, 63, 157-166

Tazzoli V, Domeneghetti C (1980) The crystal structures of whewellite and weddellite: re-examination and comparison, American Mineralogist, 65, 327-334   [view file]

Frost R L, Weier M L (2003) Raman spectroscopy of natural oxalates at 298 and 77 K, Journal of Raman Spectroscopy, 34, 776-785   [link]

Echigo T, Kimata M, Kyono A, Shimizu M, Hatta T (2005) Re-investigation of the crystal structure of whewellite [Ca(C2O4)·H2O] and the dehydration mechanism of caoxite [Ca(C2O4)·3H2O], Mineralogical Magazine, 69, 77-88   [view file]

Piilonen P C, Ercit T S (2005) New mineral names, American Mineralogist, 90, 1466-1469   [view file]

Hernanz A, Gavira-Vallejo J M, Ruiz-Lopez J F (2007) Calcium oxalates and prehistoric paintings. The usefulness of these biominerals, Journal of Optoelectronics and Advanced Materials, 9, 512-521

Echigo T, Kimata M (2010) Crystal chemistry and genesis of organic minerals: A review of oxalate and polycyclic aromatic hydrocarbon minerals, The Canadian Mineralogist, 48, 1329-1358