R050242 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Weddellite R050242

Name: Weddellite
RRUFF ID: R050242
Ideal Chemistry: Ca(C₂O₄)·2H₂O
Locality: Biggs, Wasco County, Oregon, USA
Source: Marcus Origlieri
Owner: RRUFF
Description: Isolated yellowish brown crystal
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis

Mineral Group: [ Oxalate (13) ]

Quick search: [ All Weddellite samples (2) ]

CHEMISTRY

RRUFF ID:	R050242.2
Sample Description:	Microprobe fragment
Measured Chemistry:	Ca_1.00(C₂O₄)·2H₂O ; C not measured

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

DOWNLOADS:

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

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R050242

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 40% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

INFRARED SPECTRUM (Attenuated Total Reflectance)

RRUFF ID:

R050242.1

Sample Description:

Powder

Instrument settings:

SensIR Durascope on a Nicolet Magna 860 FTIR

Resolution:

DOWNLOADS:

	Infrared Data (Processed)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R050242.1

Sample Description:

Powder

Cell Refinement Output:

a: 12.3693(4)Å b: 12.3693(4)Å c: 7.3567(2)Å
alpha: 90° beta: 90° gamma: 90° Volume: 1125.58(6)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.

File Type Information

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

DOWNLOADS:

	Cell Refinement Data
	Cell Refinement Output Data
	DIF File
	X-ray Data (XY - Processed)
	RRUFF 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