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The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.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

Whiteite-(CaMnMg) R140770

Browse Search Results 
<< Previous |  Back to Search Results |  Next >> 
Record 4071 of 4216  


Name: Whiteite-(CaMnMg)
RRUFF ID: R140770
Ideal Chemistry: CaMn2+Mg2Al2(PO4)4(OH)2·8H2O
Locality: Tip Top mine, Fourmile, Custer District, Custer County, South Dakota, USA
Source: Thomas A. Loomis [view label]
Owner: RRUFF
Description: Light tan with triangular striated faces, associated with deep red roscherite and colorless acicular sprays of tiptopite. Crystals are twinned by a 2-fold rotation around a*.
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Jahnsite (7) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented 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: R140770
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 50% of 150mW
DOWNLOADS:

Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R140770
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 14.709(8)Å    b: 6.949(4)Å    c: 9.929(5)Å
alpha: 90°    beta: 108.78(2)°    gamma: 90°   Volume: 960.8(8)Å3    Crystal System: monoclinic
DOWNLOADS:
X Min:    X Max:    X Sort:
REFERENCES for Whiteite-(CaMnMg)

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]

Fleischer M, Chao G Y, Pabst A (1979) New mineral names, American Mineralogist, 64, 464-467   [view file]

Grice J D, Dunn P J, Ramik R A (1989) Whiteite-(CaMnMg), a new mineral species from the Tip Top pegmatite, Custer, South Dakota, The Canadian Mineralogist, 27, 699-702   [view file]

Jambor J L, Grew E S (1990) New mineral names, American Mineralogist, 75, 931-937   [view file]