Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.

Magnesioalterite R180015

Browse Search Results 
<< Previous |  Back to Search Results |  Next >> 
Record 2380 of 4216  


Name: Magnesioalterite
RRUFF ID: R180015
Ideal Chemistry: Mg2Fe3+4(SO4)4(C2O4)2(OH)4·17H2O
Locality: Near Marble Canyon, Coconino County, Arizona, USA
Source: Malcom Alter
Owner: RRUFF
Description: Isolated or aggregates of yellow brown prismatic crystals on petrified wood, associated with greenish prismatic alterite, gypsum, alunogen, and sulfur. Type sample.
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Groups: [ Alterite (2) ] [ Oxalate (13) ]
CHEMISTRY 
RRUFF ID: R180015.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg0.74Zn0.60Fe2+0.58Mn0.09)Fe3+4(SO4)4.0(C2O4)2.0(OH)4.0ยท17H2O
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
DOWNLOADS:

  To download sample data,
  please select a specific
  orientation angle.
Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R180015
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 25% of 150mW
DOWNLOADS:

Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R180015
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 16.7656(15)Å    b: 9.4074(7)Å    c: 25.351(3)Å
alpha: 90°    beta: 108.258(5)°    gamma: 90°   Volume: 3797.1(6)Å3    Crystal System: monoclinic
DOWNLOADS:
X Min:    X Max:    X Sort:
REFERENCES for Magnesioalterite

Miyawaki R, Hatert F, Pasero M, Mills S J (2020) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 57, Mineralogical Magazine, 84, 791-794   [view file]