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Tweddillite from
Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa


07334550017271929644493.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
04206580017363192993604.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
05107310017271929728423.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
07334550017271929644493.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
04206580017363192993604.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
02389330017271929626297.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
07334550017271929644493.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
04206580017363192993604.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
05107310017271929728423.jpg
Tweddillite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
Locality type:Mine
Classification
Species:Tweddillite
Formula:(CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH)
Comments:occurs in calcsilicate rocks formed as hydrothermal alteration of the primary manganese ore. The crystals form dark red rosettes of very thin (~ 0.02 mm) radiating, elongated blades
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Braunite
Pectolite
Serandite
Associated Minerals Based on Photo Data:
Hennomartinite1
Sugilite1
Data
Mineral Data:Click here to view Tweddillite data
Locality Data:Click here to view Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:94308
Long-form Identifier:1:3:94308:8
GUID (UUID V4):0
References
Weiß, Stefan (2002) Neue Mineralien [New Minerals]. Lapis, 27 (11). 28-30; 40-43
Armbruster, T., Gnos, E., Dixon, R., Gutzmer, J., Hejny, C., Döbelin, N., Medenbach, O. (2002) Manganvesuvianite and tweddillite, two new Mn3+-silicate minerals from the Kalahari manganese fields, South Africa. Mineralogical Magazine, 66 (1) 137-150 doi:10.1180/0026461026610018
 
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