Padmaite (original) (raw)

A valid IMA mineral species

About PadmaiteHide

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Specific Gravity:

9.86 (Calculated)

Name:

Named by Y.S. Polekhovskij et al. in 1991 for the type locality of Srednyaya Padma mine, Russia.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3060:7

df956c0f-cadd-487d-95fd-35e8f990bdaf

IMA Classification of PadmaiteHide

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Type description reference:

Polekhovskij, Y.S., Voloshin, A.V., Tarasova, I.P., Nikitin, S.A., Pakhomovskij, Y.A., Men´shikov, Y.P., Kretzer, Y.L., Kolytscheva, T.I. (1991) Padmaite PdBiSe—a new selenide of palladium and bismuth from metasomatites of the southern Karelia. Zapiski Vsesoyuznogo (Vserossiyskogo) Mineralogicheskogo Obshchestva: 120(3): 85-88.

Classification of PadmaiteHide

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2.EB.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.

2.12.3.10

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2

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 PadmaiteHide

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Hardness:

VHN20=260 - 272 kg/mm2 - Vickers

Cleavage:

Imperfect/Fair
Imperfect cleavage in two perpendicular directions.

Density:

9.86 g/cm3 (Calculated)

Optical Data of PadmaiteHide

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Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 51.4%.

Colour in reflected light:

Pinkish yellow

Internal Reflections:

None

Chemistry of PadmaiteHide

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Common Impurities:

Pt,Ag,S

Crystallography of PadmaiteHide

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Class (H-M):

432 - Gyroidal

Cell Parameters:

a = 6.448(3) Å

Unit Cell V:

268.09 ų (Calculated from Unit Cell)

Comment:

Space Group: P4132 or P4332 (by analogy to synthetic PdBiSe)

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of PadmaiteHide

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General Appearance of Type Material:

Isometric, irregular grains up to 0.2 mm in diameter, and as symplectic intergrowths with palladium sulfides up to 0.01-0.02 mm.

Place of Conservation of Type Material:

Mining Museum, St. Peterburg, Russia.

Geological Setting of Type Material:

Metasomatic rocks formed in shungite-bearing metashales of Lower Proterozoic age.

Associated Minerals at Type Locality:

Reference:

Polekhovskij, Y.S., Voloshin, A.V., Tarasova, I.P., Nikitin, S.A., Pakhomovskij, Y.A., Men´shikov, Y.P., Kretzer, Y.L., Kolytscheva, T.I. (1991) Padmaite PdBiSe—a new selenide of palladium and bismuth from metasomatites of the southern Karelia. Zapiski Vsesoyuznogo (Vserossiyskogo) Mineralogicheskogo Obshchestva: 120(3): 85-88.

Synonyms of PadmaiteHide

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Other Language Names for PadmaiteHide

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Simplified Chinese:硒铋钯矿

Traditional Chinese:硒鉍鈀礦

Relationship of Padmaite to other SpeciesHide

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Other Members of this group:

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 PadmaiteHide

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References for PadmaiteHide

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Reference List:

Polekhovskij, Y.S., Voloshin, A.V., Tarasova, I.P., Nikitin, S.A., Pakhomovskij, Y.A., Men´shikov, Y.P., Kretzer, Y.L., Kolytscheva, T.I. (1991) Padmaite PdBiSe—a new selenide of palladium and bismuth from metasomatites of the southern Karelia. Zapiski Vsesoyuznogo (Vserossiyskogo) Mineralogicheskogo Obshchestva: 120(3): 85-88.

Localities for PadmaiteHide

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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.