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


01392520017866377106952.jpg
Poldervaartite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
07174070017271925942619.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
06503660017271926007367.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
02911030017272010841851.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
01392520017866377106952.jpg
Poldervaartite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
07174070017271925942619.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
06503660017271926007367.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
02911030017272010841851.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
01584360017271926103865.jpg
Poldervaartite

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
07174070017271925942619.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
00817370017272010868560.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
02911030017272010841851.jpg
Poldervaartite, etc.

Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
Locality type:Mine
Classification
Species:Poldervaartite
Formula:CaCa[SiO3(OH)](OH)
Comments:One pocket was discovered
Habit:Sprays to 1 cm
Colour:White
Abundance at site:Very Rare
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Braunite
Bultfonteinite
Calcite
Hausmannite
Hematite
Henritermierite
Associated Minerals Based on Photo Data:
Andradite2
Jennite1
Data
Mineral Data:Click here to view Poldervaartite 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 (15 photos)
Data Identifiers
Mindat Occurrence Record ID:20360
Long-form Identifier:1:3:20360:7
GUID (UUID V4):0
Nearest other occurrences of Poldervaartite
2.7km (1.7 miles) ⓘN'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
2.9km (1.8 miles) ⓘN'Chwaning I Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
References
Dai, Yongshan, Harlow, George E., Mcghie, Andrew R. (1993) Poldervaartite, Ca(Ca0.5Mn0.5)(SiO3OH)(OH), a new acid nesosilicate from the Kalahari manganese field, South Africa: Crystal structure and description. American Mineralogist, 78 (9-10) 1082-1087
Bezing, L. von; Gutzmer, J. (1994) Das Kalahari Manganerzfeld und seine Mineralien (II) [The Kalahari Manganese Ore Field and its Minerals (II)]. Mineralien-Welt, 5 (5). 41-59
Gutzmer, Jens; Cairncross, Bruce (2001) Seltene Mineralien aus dem Kalahari-Manganerzfeld, SÞdafrika [Rare minerals from the Kalahari manganese ore field, South Africa]. Lapis, 26 (10). 32-42; 86
Gutzmer, Jens, Cairncross, Bruce (2002) Spectacular Minerals from the Kalahari Manganese Field, South Africa. Rocks & Minerals, 77 (2) 94-107 doi:10.1080/00357529.2002.9926665
 
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