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| Content Provider | Springer Nature Link |
|---|---|
| Author | Daltry, V. D. C. Wilson, A. H. |
| Copyright Year | 1997 |
| Abstract | There are 96 approved PG (platinum group) — mineral species and more than 500 unidentified PG-phases on record. In addition, over 20 non-PG-minerals contain varying concentrations of one or more of the six platinum group elements.The PG-minerals commonly have cubic symmetry and density values mostly between 10–11 g/cm3 but within the range 5–22 g/cm3. Furthermore, there is a tangible positive correlation between relative density and reflectance data. On a chemical basis, all PG-minerals and PG-phases are non-silicates and a large proportion are sulphides, arsenides and tellurides. The elements Sb and Bi are also important constituents of PG-minerals.This review of the published literature up to April, 1996, provides an evaluation of approximately 1500 published chemical analyses of PG-minerals which have been accepted by the IMA as discrete mineral species and unidentified PG-phases reported in the literature but not proven to be discrete minerals. Revealed by the database are a number of chemically-related trends which concern both the PG-elements themselves and the essential non-PG-element constituents. The latter grouping of elements is discussed as a separate publication (Daltry andWilson, 1997). Pd-dominant compounds are the most abundant of the PG-minerals and PG-phases and the Os-dominant compounds are the least abundant.On an inter-PG-element basis, the Ir-, Os-, Pd-, Pt-, Rh- and Ru-dominant minerals and phases may each contain varying concentrations of all the remaining five PG-elements. In this context, there are discernable sympathetic and antipathetic trends. Palladium exhibits the most pronounced antipathy with other PG-elements, whereas platinum exhibits the most marked sympathetic tendencies towards the other PG-elements.Zur Zeit gibt es 96 von der IMA genehmigte PG-(Platingruppen)-Minerale (PGM) und mehr als 500 nicht identifizierte PGE-Phasen. Außerdem enthalten mehr als 20 Nicht-PG-Minerale Konzentrationen von einem oder dem anderen der 6 Platingruppenelemente.Die PG-Minerale haben weithin kubische Symmetrie. Das spezifische Gewicht liegt meist zwischen 10 bis 11/cm3. Außerdem gibt es eine deutlich positive Kombination zwischen der relativen Dichte und dem Reflexionsvermögen. Alle PG-Minerale und PG-Phasen sind Nicht-Silikate und ein großer Teil davon sind Sulfide, Arsenide und Telluride. Die Elemente Sb und Bi sind auch wichtige Bestandteile von PG-Mineralen.Diese Übersicht der Literatur bis zum April 1996 evaluiert ungefähr 1500 veröffentlichte chemische Analysen von PG-Mineralen, die von der IMA als definierte Mineralspezies akzeptiert worden sind und von nicht benannten PG-Phasen, wie in der Literatur erwähnt, aber nicht als Minerale definiert worden sind. Die Datenbasis läßt einige chemische Trends erkennen, die sowohl die PG-Elemente, wie auch die wesentlichen Nicht-PG-Komponenten betreffen. Letztere wird in einer separaten Publikation (Daltry und Wilson, 1996) diskutiert. PG-dominante Verbindungen sind am weitesten verbreitet, während Os-dominante Verbindungen am seltensten vorkommen.Auf einer Inter-PG-Element-Basis zeigt sich, daß Ir-Os, Pt-Rh und Ru-dominanten Minerale und Phasen jeweils wechselnde Konzentrationen der anderen fünf PG Elemente enthalten können. In diesem Zusammenhang werden sympathetische und antipathetische Trends sichtbar. Palladium zeigt die deutlichste Antipathie gegenüber anderen PG-Elementen, während Platin am deutlichsten ausgebildete sympathetische Tendenzen gegenüber den anderen PG-Elementen erkennen läßt. |
| Starting Page | 185 |
| Ending Page | 229 |
| Page Count | 45 |
| File Format | |
| ISSN | 09300708 |
| Journal | Mineralogy and Petrology |
| Volume Number | 60 |
| Issue Number | 3-4 |
| e-ISSN | 14381168 |
| Language | German |
| Publisher | Springer-Verlag |
| Publisher Date | 1997-01-01 |
| Publisher Place | Vienna |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Geochemistry Mineralogy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geophysics Geochemistry and Petrology |
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