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Name: Whewellite RRUFF ID: R070655 Ideal Chemistry: Ca(C2O4)·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. |
| Mineral Group: [ Oxalate (13) ] | ||
| Quick search: [ All Whewellite samples (3) ] | ||
| RAMAN SPECTRUM | ||||||||||||
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| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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| POWDER DIFFRACTION | |||||||
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| 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)Å3 Crystal System: monoclinic |
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| REFERENCES for Whewellite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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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] |
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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] |
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Frondel C, Prien E L (1942) Carbonate-apatite and hydroxyl-apatite in urinary calculi, Science, 95, 431-431 |
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International Mineralogical Association (1967) Commission on new minerals and mineral names, Mineralogical Magazine, 36, 131-136 [view file] |
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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 |
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Tazzoli V, Domeneghetti C (1980) The crystal structures of whewellite and weddellite: re-examination and comparison, American Mineralogist, 65, 327-334 [view file] |
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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] |
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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] |
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Piilonen P C, Ercit T S (2005) New mineral names, American Mineralogist, 90, 1466-1469 [view file] |
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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 |
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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 [view file] |
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Sturm E V, Frank-Kamenetskaya O, Vlasov D, Zelenskaya M, Sazanova K, Rusakov A, Kniep R (2015) Crystallization of calcium oxalate hydrates by interaction of calcite marble with fungus aspergillus niger, American Mineralogist, 100, 2559-2565 |
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Piro O E, Baran E J (2018) Crystal chemistry of organic minerals-salts of organic acids: the synthetic approach, Crystallography Reviews, 24, 149-175 |
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