R110123 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

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Weddellite R110123

Name: Weddellite
RRUFF ID: R110123
Ideal Chemistry: Ca(C₂O₄)·2H₂O
Locality: Tucson, Arizona, USA
Source: Gordie Downs
Owner: RRUFF
Description: White to colorless spheroidal crystals found in the pith of a living Saguaro cactus
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.

Mineral Group: [ Oxalate (13) ]

Quick search: [ All Weddellite samples (2) ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented Raman on the primary sample

DOWNLOADS:

To download sample data,
please select a specific
orientation angle.

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R110123

Wavelength:

Sample Description:

Unoriented Raman on the primary sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R110123.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 12.410(4)Å b: 12.410(4)Å c: 7.386(3)Å
alpha: 90° beta: 90° gamma: 90° Volume: 1137.5(2)Å³ Crystal System: tetragonal

File Type Information

Calculated diffraction file.

File Type Information

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

DOWNLOADS:

	DIF File
	X-ray Data (XY - RAW)
	RRUFF File

REFERENCES for Weddellite
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]
Bannister F A, Hey M H (1936) Report on some crystalline components of the Weddell Sea deposits, Discovery Reports, 13, 60-69 [view file]
Frondel C, Prien E L (1942) Carbonate-apatite and hydroxyl-apatite in urinary calculi, Science, 95, 431-431
Sterling C (1965) Crystal-structure analysis of weddellite, CaC₂O₄·(2+x)H₂O, Acta Crystallographica, 18, 917-921
Tazzoli V, Domeneghetti C (1980) The crystal structures of whewellite and weddellite: re-examination and comparison, American Mineralogist, 65, 327-334 [view file]
Mandarino J A, Witt N V (1983) Weddellite from Biggs, Oregon, U.S.A., The Canadian Mineralogist, 21, 503-508 [view file]
Mandarino J A (1983) Weddellite from Lutterworth Township, Haliburton County, Ontario, The Canadian Mineralogist, 21, 509-511 [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]
Frost R L, Weier M L (2003) Thermal treatment of weddellite--a Raman and infrared emission spectroscopic study, Thermochimica Acta, 406, 221-232
Garvie L A J (2003) Decay-induced biomineralization of the saguaro cactus (Carnegiea gigantea), American Mineralogist, 88, 1879-1888 [view file]
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]
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 [view file]
Izatulina A, Gurzhiy V, Frank-Kamenetskaya O (2014) Weddellite from renal stones: Structure refinement and dependence of crystal chemical features on H₂O content, American Mineralogist, 99, 2-7
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
Mills S J, Christy A G (2016) The Great Barrier Reef Expedition 1928–29: The crystal structure and occurrence of weddellite, ideally CaC₂O₄·2.5H₂O, from the Low Isles, Queensland, Mineralogical Magazine, 80, 399-406
Piro O E, Baran E J (2018) Crystal chemistry of organic minerals-salts of organic acids: the synthetic approach, Crystallography Reviews, 24, 149-175

REFERENCES for Weddellite

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]

Bannister F A, Hey M H (1936) Report on some crystalline components of the Weddell Sea deposits, Discovery Reports, 13, 60-69 [view file]

Frondel C, Prien E L (1942) Carbonate-apatite and hydroxyl-apatite in urinary calculi, Science, 95, 431-431

Sterling C (1965) Crystal-structure analysis of weddellite, CaC₂O₄·(2+x)H₂O, Acta Crystallographica, 18, 917-921

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

Mandarino J A, Witt N V (1983) Weddellite from Biggs, Oregon, U.S.A., The Canadian Mineralogist, 21, 503-508 [view file]

Mandarino J A (1983) Weddellite from Lutterworth Township, Haliburton County, Ontario, The Canadian Mineralogist, 21, 509-511 [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]

Frost R L, Weier M L (2003) Thermal treatment of weddellite--a Raman and infrared emission spectroscopic study, Thermochimica Acta, 406, 221-232

Garvie L A J (2003) Decay-induced biomineralization of the saguaro cactus (Carnegiea gigantea), American Mineralogist, 88, 1879-1888 [view file]

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]

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 [view file]

Izatulina A, Gurzhiy V, Frank-Kamenetskaya O (2014) Weddellite from renal stones: Structure refinement and dependence of crystal chemical features on H₂O content, American Mineralogist, 99, 2-7

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

Mills S J, Christy A G (2016) The Great Barrier Reef Expedition 1928–29: The crystal structure and occurrence of weddellite, ideally CaC₂O₄·2.5H₂O, from the Low Isles, Queensland, Mineralogical Magazine, 80, 399-406

Piro O E, Baran E J (2018) Crystal chemistry of organic minerals-salts of organic acids: the synthetic approach, Crystallography Reviews, 24, 149-175