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The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.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

Wesselsite R120019

Browse Search Results 
<< Previous |  Back to Search Results |  Next >> 
Record 4059 of 4216  


Name: Wesselsite
RRUFF ID: R120019
Ideal Chemistry: SrCuSi4O10
Locality: Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Dark blue massive, associated with R120057 lavinskyite and R120077 scottyite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Gillespite (5) ]
CHEMISTRY 
RRUFF ID: R120019.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Sr0.98Ba0.04)Cu1.05Si3.97O10 ; (wesselsite is medium gray material in image, associated with samples R120057 lavinskyite, dark grey; and R120077 scottyite, light grey)
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample, the 780 spectrum is overwhelmed by fluorescence.
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: R120019
Wavelength:
Sample Description: Unoriented Raman on the primary sample, the 780 spectrum is overwhelmed by fluorescence.
Instrument settings: Thermo Almega XR 532nm @ 10% of 150mW
DOWNLOADS:

Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R120019.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 7.3819(7)Å    b: 7.3819(7)Å    c: 15.658(2)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 853.3(1)Å3    Crystal System: tetragonal
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
X Min:    X Max:    X Sort:
REFERENCES for Wesselsite

American Mineralogist Crystal Structure Database Record: [view record]

Chakoumakos B C, Fernandez-Baca J A, Boatner L A (1993) Refinement of the structures of the layer silicates MCuSi4O10 (M=Ca, Sr, Ba) by Rietveld analysis of neutron powder diffraction data, Journal of Solid State Chemistry, 103, 105-113

Giester G, Rieck B (1996) Wesselsite, SrCu[Si4O10], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa, Mineralogical Magazine, 60, 795-798   [view file]

Jambor J L, Puziewicz J, Roberts A C (1997) New mineral names, American Mineralogist, 82, 620-624   [view file]

Knight K S, Henderson C M B (2007) Structural basis for the anomalous low-temperature thermal expansion behaviour of the gillespite-structured phase Ba0.5Sr0.5CuSi4O10, European Journal of Mineralogy, 19, 189-200

Knight K S, Henderson C M B, Clark S M (2010) Structural variations in the wesselsite-effenbergerite (Sr1-xBaxCuSi4O10) solid solution, European Journal of Mineralogy, 22, 411-423

Rieck B, Pristacz H, Giester G (2015) Colinowensite, BaCuSi2O6, a new mineral from the Kalahari Manganese Field, South Africa and new data on wesselsite SrCuSi4O10, Mineralogical Magazine, 79, 1769-1778   [view file]