Giester, G., Rieck, B. (1996) Wesselsite, SrCu[Si4O10], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa. Mineralogical Magazine, 60 (402) 795-798 doi:10.1180/minmag.1996.060.402.09
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Wesselsite, SrCu[Si4O10], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa | ||
| Journal | Mineralogical Magazine | ISSN | 0026-461X |
| Authors | Giester, G. | Author | |
| Rieck, B. | Author | ||
| Year | 1996 (October) | Volume | 60 |
| Page(s) | 795-798 | Issue | 402 |
| Publisher | Mineralogical Society | ||
| Download URL | https://rruff.info/doclib/MinMag/Volume_60/60-402-795.pdf+ | ||
| DOI | doi:10.1180/minmag.1996.060.402.09Search in ResearchGate | ||
| Mindat Ref. ID | 97 | Long-form Identifier | mindat:1:5:97:4 |
| GUID | d24eafba-9749-4948-8c73-524c9b7081ac | ||
| Full Reference | Giester, G., Rieck, B. (1996) Wesselsite, SrCu[Si4O10], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa. Mineralogical Magazine, 60 (402) 795-798 doi:10.1180/minmag.1996.060.402.09 | ||
| Plain Text | Giester, G., Rieck, B. (1996) Wesselsite, SrCu[Si4O10], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa. Mineralogical Magazine, 60 (402) 795-798 doi:10.1180/minmag.1996.060.402.09 | ||
| In | (1996, October) Mineralogical Magazine Vol. 60 (402) Mineralogical Society | ||
| Abstract/Notes | AbstractWesselsite, SrCu[Si4O10], is a new mineral species from the Wessels mine, Kalahari Manganese Field, South Africa, and it belongs to the gillespite group. Wesselsite is tetragonal, space group P4/ncc; the unit cell parameters, refined from Gandolfi film data, are a = 7.366(1), c = 15.574(3) Å V = 845.01 Å3. The strongest lines are (dobs/lobs/hkl) (7.79/35/002), (4.33/20/112), (3.89/20/004), (3.44/40/104), (3.33/100/202), (3.12/55/114), (3.03/50/212), (2.68/25/204), (2.61/30/220) and (2.32/30/116). Wesselsite is associated with hennomartinite, embedded in a matrix of sugilite, xonotlite, quartz and pectolite. Microprobe analyses of 111 samples show that it is the end-member of a solid solution series with effenbergerite, BaCu[Si4O10], with substitutions of Sr by Ba up to 50 mol.%. Wesselsite forms tiny subhedral plates in sizes not exceeding 50 × 50 × 5 µm, arranged in clusters of up to 200 µm. It shows a perfect cleavage parallel to {001}, has blue colour, white to light blue streak, and is uniaxial negative with ω = 1.630(2), ε = 1.590(5), strongly pleochroic from blue (ω) to pale blue (ε). The calculated density is 3.32 g cm−3, the measured density is 3.2(1) g cm−3. | ||
Map of Localities
Locality Pages
| Locality | Citation Details |
|---|---|
| Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa |
Mineral Pages
| Mineral | Citation Details |
|---|---|
| Wesselsite |
Mineral Occurrences
| Locality | Mineral(s) |
|---|---|
| Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa | ⓘ Quartz, ⓘ Sugilite, ⓘ Wesselsite, ⓘ Xonotlite |
See Also
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