Palladothallite (original) (raw)

A valid IMA mineral species

Specific Gravity:

13.04 (Calculated)

Crystal System:

Tetragonal

Name:

Named for the composition that includes palladium and thallium.

Known synthetic analogue. ZrAl3 structure type.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:55235:0

6f8e4b39-6533-4c30-98c7-fa87d307d4b1

IMA Classification of PalladothalliteHide

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Classification of PalladothalliteHide

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1.AG.

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Physical Properties of PalladothalliteHide

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Density:

13.04 g/cm3 (Calculated)

Optical Data of PalladothalliteHide

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Anisotropism:

Anisotropy not observed

Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 61.7%.

Colour in reflected light:

White

Internal Reflections:

Not observed

Chemistry of PalladothalliteHide

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Crystallography of PalladothalliteHide

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Crystal System:

Tetragonal

Class (H-M):

4/m m m _(_4/_m_2/_m_2/m ) - Ditetragonal Dipyramidal

Cell Parameters:

a = 4.10659(9) Å, c = 15.3028(4) Å

Comment:

Crystal structure of the synthetic counterpart solved by Kurtzemann & Kohlmann (2010), from powder neutron diffraction data.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

From Type Description.

Type Occurrence of PalladothalliteHide

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General Appearance of Type Material:

Anhedral grains, ca. 1 to 20 μm in size, intergrown with bortnikovite; both constitute "rims around tulameenite (...), Pt-Pd-Fe-Cu alloys, and Pt-Pd-Fe-Cu “oxides”, in a goethite matrix".

Place of Conservation of Type Material:

Type material is deposited in the mineralogical collections of the Department of Earth Sciences, Natural History Museum, Cromwell Road, South Kensington, London SW7 5BD, United Kingdom, catalogue number BM2019,1.

Geological Setting of Type Material:

Orthopyroxenite bearing disseminated Ni-Cu-Fe sulfides; "in near-surface oxidized ore of an orthopyroxenite unit".

Synonyms of PalladothalliteHide

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Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for PalladothalliteHide

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References for PalladothalliteHide

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Reference List:

Grokhovskaya, Tatiana L., Vymazalová, Anna, Laufek, František, Stanley, Chris J., Borisovskiy, Sergey Ye. (2021) Palladothallite, Pd3Tl, a new mineral from the Monchetundra layered intrusion, Kola Peninsula, Russia. The Canadian Mineralogist, 59 (6) 1821-1832 doi:10.3749/canmin.2100002

Localities for PalladothalliteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.