Ratovkite (original) (raw)

About RatovkiteHide

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Name:

According to its the first locality - Ratovskii gully.

A variety of Fluorite

Finely-dispersed fluorite of sedimentary origin and with deep-violet colour due to irradiation. First described from the Moscow area in the early 19th century.
This variety has not a true sedimentary origin but only forms within marine sedimentary rocks from cold ground waters. During oxidation of pyrite in overlying black Jurassic clays, a lot of sulphuric acid forms. This acid reacts with fluorcarbonate-apatite fossils (phosphorites) with formation of free HF. These cold diluted downward solutions of H2SO4 + HF penetrate into underlying dolomitised limestones of Carboniferous age and dissolve carbonates, with subsequent formation of fluorite as veinlet fillings, precipitates and impregnations within massive limestones.
Due to elevated contents of uranium and subsidiary radionuclides in the black Jurassic clays, these groundwater solutions are enriched by radon, the decay of which produces gamma-rays. The latter impart a deep violet radiation colouration to the newly formed fluorite precipitates.
This is the characteristic feature separating ratovkite from other sedimentary fluorites.

Unique IdentifiersHide

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Mindat ID:

42541 (as Ratovkite)
1576 (as Fluorite)

Long-form identifier:

mindat:1:1:42541:8 (as Ratovkite)
mindat:1:1:1576:5 (as Fluorite)

2d7dcecf-043d-4f36-a424-b86fd57de34a (as Ratovkite)
fa6f81a0-7691-46e7-9731-0435742f9b4e (as Fluorite)

Physical Properties of RatovkiteHide

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Comment:

hardness of aggregates

Chemistry of RatovkiteHide

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Other Language Names for RatovkiteHide

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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 RatovkiteHide

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References for RatovkiteHide

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Localities for RatovkiteHide

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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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