Bowlesite, PtSnS, a new platinum group mineral (PGM) from the Merensky Reef of the Bushveld Complex, South Africa
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F20%3A00000118" target="_blank" >RIV/00025798:_____/20:00000118 - isvavai.cz</a>
Result on the web
<a href="https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/bowlesite-ptsns-a-new-platinum-group-mineral-pgm-from-the-merensky-reef-of-the-bushveld-complex-south-africa/616DA68ADE538D1331F0AAD10B91077F" target="_blank" >https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/bowlesite-ptsns-a-new-platinum-group-mineral-pgm-from-the-merensky-reef-of-the-bushveld-complex-south-africa/616DA68ADE538D1331F0AAD10B91077F</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1180/mgm.2020.32" target="_blank" >10.1180/mgm.2020.32</a>
Alternative languages
Result language
angličtina
Original language name
Bowlesite, PtSnS, a new platinum group mineral (PGM) from the Merensky Reef of the Bushveld Complex, South Africa
Original language description
Bowlesite is a new mineral discovered in the Merensky Reef of the Rustenburg Platinum Mine, Bushveld complex, South Africa.Bowlesite forms tiny grains (maximum dimension 20 micrometer). It is associated with sulfides including chalcopyrite, pyrrhotite and pentlandite,in contact with silicates including plagioclase, pyroxene- and minor serpentine-subgroup and amphibole-supergroup minerals.Bowlesite is brittle and has a metallic lustre. In plane-polarised light, bowlesite has a light bluish grey colour. It shows weak bireflectance,no pleochroism and has weak anisotropism. Internal reflections were not observed. Reflectance values of bowlesite in air (R1, R2 in percent)are: 50.3–51.4 at 470 nm, 48.5–48.9 at 546 nm, 47.9–48.6 at 589 nm and 47.8–48.7 at 650 nm. Ten spot analyses of bowlesite give theaverage composition: Pt 56.85, Pd 0.02, Sn 34.03 and S 9.15, total 100.05 wt.percent, corresponding to the empirical formula(Pt1.001Pd0.001)sigma1.002Sn0.997S1.001, based on 3 atoms per formula unit. The simplified formula is PtSnS. Due to the small size ofbowlesite, the crystal structure was solved and refined from the powder X-ray-diffraction data of synthetic PtSnS. The calculateddensity is 10.06 g⋅cm–3. The mineral is orthorhombic, space group: Pca21 (#29) with a = 6.11511(10), b = 6.12383(10), c = 6.09667(11) angstroem,V = 228.31(1) angstroem3 and Z = 4. Bowlesite is isotypic with cobaltite, CoAsS. The origin of bowlesite is probably related to low-T exsolution ofPt–Sn phases from high-T sulfides crystallised from the sulfide melt. The mineral honours Dr. John Bowles (Manchester University, UK)for his contributions to ore mineralogy and mineral deposits related to mafic–ultramafic rocks.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10504 - Mineralogy
Result continuities
Project
<a href="/en/project/GA18-15390S" target="_blank" >GA18-15390S: Experimental and mineralogical study of selected platinum-group chalcogenides and alloys</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mineralogical Magazine
ISSN
0026-461X
e-ISSN
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Volume of the periodical
84
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
468-476
UT code for WoS article
000545319900012
EID of the result in the Scopus database
2-s2.0-85091070541