Iowaite R060272

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Record 1997 of 4216  


Name: Iowaite
RRUFF ID: R060272
Ideal Chemistry: Mg6Fe3+2(OH)16Cl2·4H2O
Locality: Palabora open pit, Phalaborwa, Transvaal, Republic of South Africa
Source: Michael Scott S100180 [view label]
Owner: RRUFF
Description: Reddish-brown hexagonal tablet
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Hydrotalcite (22) ]
Quick search: [ All Iowaite samples (2) ]
CHEMISTRY 
RRUFF ID: R060272.2
Sample Description: Microprobe Fragment
Measured Chemistry: Mg6.00Fe3+2.00(OH)16(Cl1.65(OH)0.35)·4H2O; OH estimated by charge balance
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060272
Wavelength:
Sample Description: Unoriented Raman on the primary 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: R060272.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 3.1104(9)Å    b: 3.1104(9)Å    c: 23.51(1)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 196.96(7)Å3    Crystal System: hexagonal
  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.

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

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]

Kohls D W, Rodda, J L (1967) Iowaite, a new hydrous magnesium hydroxide-ferric oxychloride from the Precambrian of Iowa, American Mineralogist, 52, 1261-1271   [view file]

Allmann R, Donnay J D H (1969) About the structure of iowaite, American Mineralogist, 54, 296-299   [view file]

Braithwaite R S W, Dunn P J, Pritchard R G, Paar W H (1994) Iowaite, a re-investigation, Mineralogical Magazine, 58, 79-85   [view file]

Jambor J L, Roberts A C, Vanko D A (1994) New mineral names, American Mineralogist, 79, 1009-1014   [view file]

Mills S J, Christy A G, Génin J -M R, Kameda T, Colombo F (2012) Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides, Mineralogical Magazine, 76, 1289-1336   [view file]

Zhitova E S, Chukanov N V, Pekov I V, Zolotarev A A, Shilovskikh V V, Bocharov V N (2023) Crystal chemistry of iowaite, Mg6FeIII2(OH)16Cl2 × 4H2O, a natural layered double hydroxide, Applied Clay Science, 243, 107070