Rosickýite (original) (raw)

A valid IMA mineral species - grandfathered

About RosickýiteHide

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Colour:

Colourless, pale yellow with green tint

Specific Gravity:

2.02 (Calculated)

Crystal System:

Monoclinic

Name:

After Professor Vojtĕch Rosický (30 October 1880 Prague, Austria-Hungary – 9 February 1942 Mauthausen, Nazi Germany), former Director of the Mineralogical and Petrological Institute of Masaryk University, Brno, Czech Republic.

Sulphur Group.
The densest form of solid S. Can be prepared by slowly cooling molten sulfur that has been heated above 150°C.
Dimorphous with both sulphur (α-sulphur), to which it changes in time at room temperature, and β-sulphur.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3458:2

e5ec0b7d-d9ac-42ac-9fb7-03eec5ae1348

IMA Classification of RosickýiteHide

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Approved, 'Grandfathered' (first described prior to 1959)

Type description reference:

Classification of RosickýiteHide

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1.CC.05

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
C : Metalloids and Nonmetals
C : Sulfur-selenium-iodine

1.3.5.2

1 : NATIVE ELEMENTS AND ALLOYS
3 : Semi-metals and non-metals

1.52

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

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 RosickýiteHide

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Transparency:

Transparent, Translucent

Colour:

Colourless, pale yellow with green tint

Density:

2.02 g/cm3 (Calculated)

Comment:

value from Meisser et al 2000

Optical Data of RosickýiteHide

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Dispersion:

relatively weak

Chemistry of RosickýiteHide

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Crystallography of RosickýiteHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 8.455(3) Å, b = 13.052(2) Å, c = 9.267(3) Å
β = 124.89(3)°

Ratio:

a:b:c = 0.648 : 1 : 0.71

Morphology:

Forms: {010}, {210}, {111} common; {111}, {012} less common; {001}, {100}, {110}, {230}, {011}, {101}, {101}, {121}, {321} rare.

Twinning:

Twinning on {101} observed. The twinning lamellae are parallel to the edge {010}:{111} with symmetrical extinction of 23°.

Comment:

Non-standard unit cell; other cell given: a = 8.476(2), b = 13.088(3), c = 9.270(2), beta = 124.92(2)°.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

La Presta mine, Switzerland. The data are from Meisser et al. (2000).

Geological EnvironmentHide

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Type Occurrence of RosickýiteHide

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General Appearance of Type Material:

Crystals, mostly less than 0.5 mm in size. Equidimensional to platy to acicular.

Place of Conservation of Type Material:

Moravian Museum, Brno, Czech Republic, number A6111 (holotype).

Geological Setting of Type Material:

In the center of hollow limonite nodules (a few centimeters in size) found in a thin stratum of clay.

Associated Minerals at Type Locality:

Reference:

Sekanina, J. (1931) Rosickyit, die natürliche γ-Schwefelmodifikation. Zeitschrift für Kristallographie: 80: 174-189.

Synonyms of RosickýiteHide

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Other Language Names for RosickýiteHide

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Relationship of Rosickýite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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Notes:

Soluble in benzol, methylene iodide and carbonbisulfide.

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 RosickýiteHide

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References for RosickýiteHide

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Localities for RosickýiteHide

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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.