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The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.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

Holtstamite R170001

Browse Search Results 
<< Previous |  Back to Search Results |  Next >> 
Record 1902 of 4216  


Name: Holtstamite
RRUFF ID: R170001
Ideal Chemistry: Ca3Al2(SiO4)2(OH)4
Locality: Wessels mine, Kalahari manganese field, South Africa
Source: Paul Botha
Owner: RRUFF
Description: Yellow to brownish-yellow granular crystals, associate with Mn-rich vesuvianite, calcite, and henritermierite
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ garnet (97) ]
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: R170001
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
DOWNLOADS:

Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R170001.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 12.2878(30)Å    b: 12.2878(30)Å    c: 11.9748(53)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1808.06(36)Å3    Crystal System: tetragonal
DOWNLOADS:
X Min:    X Max:    X Sort:
REFERENCES for Holtstamite

American Mineralogist Crystal Structure Database Record: [view record]

Gerya T, Maresch W, Burchard M, Zakhartchouk V, Doltsinis N, Fockenberg T (2005) Thermodynamic modeling of solubility and speciation of silica in H2O-SiO2 fluid up to 1300°C and 20 kbar based on the chain reaction formalism, European Journal of Mineralogy, 17, 269-283

Halenius U, Haussermann U, Harryson H (2005) Holtstamite, Ca3(Al,Mn3+)2(SiO4)3-x(H4O4)x, a new tetragonal hydrogarnet from Wessels Mine, South Africa, European Journal of Mineralogy, 17, 375-382   [view file]

Piilonen P C, Locock A, Grew E S (2005) New mineral names, American Mineralogist, 90, 1945-1952   [view file]

Grew E S, Locock A J, Mills S J, Galuskina I O, Galuskin E V, Hålenius U (2013) Nomenclature of the garnet supergroup, American Mineralogist, 98, 785-811   [view file]