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Professor Bruce Cairncross
Named after Professor Bruce Cairncross, (August 13th, 1953) Head: Department of Geology 2003-2015, University of Johannesburg, Johannesburg, South Africa.

Similar to minerals of the Gyrolite and Reyerite groups.

Classification of Cairncrossite

Approved 2013 URL:
Please feel free to link to this page.

Type Occurrence of Cairncrossite

Place of Conservation of Type Material:
In the collections of the Institute of Mineralogy and Crystallography, University of Vienna, Vienna, Austria, registration number 13079
Associated Minerals at Type Locality:

Crystallography of Cairncrossite

Crystal System:
Class (H-M):
1 - Pinacoidal
Space Group:
Cell Parameters:
a = 9.624(2) Å, b = 9.634(2) Å, c = 15.657(3) Å
α = 100.80(1)°, β = 91.22(2)°
a:b:c = 0.999 : 1 : 1.625
Unit Cell Volume:
V nan ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
15.27 (100)
5.091 (11)
4.198 (11)
4.136 (8)
3.818 (19)
3.164 (10)
3.071 (10)
3.061 (9)

Chemical Properties of Cairncrossite

All elements listed in formula:

Other Names for Cairncrossite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Cairncrossite

Reference List:
Giester, G., Lengauer, C.L., Pristacz, H., Rieck, B. and von Bezing, K.-L. (2013) Cairncrossite, IMA 2013-012. CNMNC Newsletter No. 16, August 2013, page 2703; Mineralogical Magazine, 77, 2695-2709.

Pristacz, H., Giester, G., Rieck, B., Lengauer, C.L. (2013): Thermal behaviour of the new mineral Cairncrossite, Sr2Ca7(Si4O10)4(OH)2·15H2O. Poster, MinPet 2013, September 19-23; abstract in Mitt. Österr. Mineral. Ges. 159 (in press) []

Gerald Giester, Christian L. Lengauer, Helmut Pristacz, Branko Rieck, Dan Topa, and Karl-Ludwig Von Bezing (2016): Cairncrossite, a new Ca-Sr (-Na) phyllosilicate from the Wessels Mine, Kalahari Manganese Field, South Africa. Eur. J. Mineral. (in press)

Internet Links for Cairncrossite

Localities for Cairncrossite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
South Africa (TL)
  • Northern Cape Province
    • Kalahari manganese field
      • Hotazel
Giester, G., Lengauer, C.L., Pristacz, H., Rieck, B. and von Bezing, K.-L. (2013) Cairncrossite, IMA 2013-012. CNMNC Newsletter No. 16, August 2013, page 2703; Mineralogical Magazine, 77, 2695-2709.
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