Gladkovskyite (original) (raw)

A valid IMA mineral species

Specific Gravity:

4.356 (Calculated)

Name:

Named in honor of Boris Aleksandrovitch Gladkovsky (Борис Александрович Гладковский) (1937–1990), a well-known geologist and prospector of ore and alluvial gold in the Ural Mountains. He was chief geologist of the Geological Survey of Northern Urals and helped discover the Vorontsovskoe deposit, the biggest in Northern Urals and one of the most significant gold deposits in Russia. The name is pronounced: glad kouv ski yait.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:53221:3

3fe6fcfc-95dc-486c-9e4e-11e67161d6d4

IMA Classification of GladkovskyiteHide

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Type description reference:

Kasatkin, A. V., Makovicky, E., Plášil, J., Škoda, R., Chukanov, N. V., Stepanov, S. Y., Agakhanov, A. A., Nestola, F. (2019) Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia. Journal of GEOsciences, 64 (3) 207-218

Classification of GladkovskyiteHide

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2.LA.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb

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 GladkovskyiteHide

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Hardness:

VHN100=91 - 100 - Vickers

Fracture:

Irregular/Uneven

Density:

4.356 g/cm3 (Calculated)

Comment:

Calculated from empirical formula

Optical Data of GladkovskyiteHide

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Anisotropism:

Strong, light-grey to brown

Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 28.42%.
R1 shown in black, R2 shown in red

Colour in reflected light:

Grayish-white

Comments:

Orange-red to dark-red

Chemistry of GladkovskyiteHide

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Crystallography of GladkovskyiteHide

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Class (H-M):

3_m_ - Ditrigonal Pyramidal

Cell Parameters:

a = 9.6392(2) Å, c = 6.456(1) Å

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of GladkovskyiteHide

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General Appearance of Type Material:

long-prismatic crystals and grains up to 0.2 mm

Place of Conservation of Type Material:

Collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5248/1

Geological Setting of Type Material:

A gold deposit, rich in thallium, in limestone breccias

Associated Minerals at Type Locality:

Reference:

Kasatkin, A.V., Makovicky, E., Plášil, J., Škoda, R., Chukanov, N.V., Stepanov, S.Y., Agakhanov, A.A., Nestola, F. (2019) Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia. Journal of Geosciences: 64(3): 207-218.

Synonyms of GladkovskyiteHide

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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 GladkovskyiteHide

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References for GladkovskyiteHide

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Reference List:

Kasatkin, A. V., Makovicky, E., Plášil, J., Škoda, R., Chukanov, N. V., Stepanov, S. Y., Agakhanov, A. A., Nestola, F. (2019) Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia. Journal of GEOsciences, 64 (3) 207-218

Localities for GladkovskyiteHide

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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.