Fluorkyuygenite (original) (raw)

A valid IMA mineral species

About FluorkyuygeniteHide

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Formula:

Ca12Al14O32[(H2O)4F2]

Name:

Named for being the fluorine analogue of chlorkyuygenite.

The F analogue of chlorkyuygenite and H2O analogue of fluormayenite.

Microporous tetrahedral framework structure, with water molecules occupying about 2/3 of the structural cages.

The mayenite supergroup species (in general, coded as C12A7, or C12A7e-) show unique electrochemichal properties, with some anions in their structure (e.g., oxygen anions) migrating thorough the structure. As such, the mayenites behave as metals even though they are very non-metal in terms of general chemistry. Transitions seen in their structure may be related to superconducting. The mayenites represent a group of chemicals known as "salts of an electron", also known as electrides (e.g., Weber et al., 2021).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:43913:8

b7c57c2d-8462-4cae-a366-07a3a3414a46

IMA Classification of FluorkyuygeniteHide

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Type description reference:

Galuskin, Evgeny V., Gfeller, Frank, Armbruster, Thomas, Galuskina, Irina O., Vapnik, Yevgeny, Dulski, Mateusz, Murashko, Mikhail, Dzierżanowski, Piotr, Sharygin, Viktor V., Krivovichev, Sergey V., Wirth, Richard (2015) Mayenite supergroup, part III: Fluormayenite, Ca12Al14O32[□4F2], and fluorkyuygenite, Ca12Al14O32[(H2O)4F2], two new minerals from pyrometamorphic rocks of the Hatrurim Complex, South Levant. European Journal of Mineralogy, 27 (1) 123-136 doi:10.1127/ejm/2015/0027-2420

Classification of FluorkyuygeniteHide

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4.CC.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations

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 FluorkyuygeniteHide

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Comment:

In places with greenish or yellowish tint

Hardness:

VHN50=712 kg/mm2 - Vickers

Optical Data of FluorkyuygeniteHide

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Birefringence:

Isotropic minerals have no birefringence

Chemistry of FluorkyuygeniteHide

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Mindat Formula:

Ca12Al14O32[(H2O)4F2]

Common Impurities:

Fe(III),Si,OH

Crystallography of FluorkyuygeniteHide

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Class (H-M):

43_m_ - Hextetrahedral

Cell Parameters:

a = 11.966(2) Å

Unit Cell V:

1,713.35 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Comments:

From Type Description.

Geological EnvironmentHide

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Type Occurrence of FluorkyuygeniteHide

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General Appearance of Type Material:

Crystals, usually < 20 μm in size

Place of Conservation of Type Material:

Type material is deposited in the collections of the Mineralogical Museum of St Petersburg State University, St Petersburg, Russia, catalogue number 1/19465, and the Central Siberian Geological Museum of the V.S. Sobolev Institute of Geology and Mineralog

Geological Setting of Type Material:

larnite-rich pyrometamorphic rocks

Associated Minerals at Type Locality:

Reference:

Galuskin, E.V., Gfeller, F., Armbruster, T., Sharygin, V.V., Galuskina, I.O., Krivovichev, S.V., Vapnik, Y., Murashko, M., Dzierżanowski, P., Wirth, R. (2015) Mayenite supergroup, part III: Fluormayenite, Ca12Al14O32[□4F2], and fluorkyuygenite, Ca12Al14O32[(H2O)4F2], two new minerals from pyrometamorphic rocks of the Hatrurim Complex, South Levant. European Journal of Mineralogy: 27: 123-136.

Synonyms of FluorkyuygeniteHide

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Relationship of Fluorkyuygenite 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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Fluorescence of FluorkyuygeniteHide

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Does not show fluorescence

Other InformationHide

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Notes:

Raman bands: 2600–3500 cm−1 (ν H2O); other bands as for fluormayenite

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 FluorkyuygeniteHide

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References for FluorkyuygeniteHide

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Reference List:

Galuskin, Evgeny V., Gfeller, Frank, Armbruster, Thomas, Galuskina, Irina O., Vapnik, Yevgeny, Dulski, Mateusz, Murashko, Mikhail, Dzierżanowski, Piotr, Sharygin, Viktor V., Krivovichev, Sergey V., Wirth, Richard (2015) Mayenite supergroup, part III: Fluormayenite, Ca12Al14O32[□4F2], and fluorkyuygenite, Ca12Al14O32[(H2O)4F2], two new minerals from pyrometamorphic rocks of the Hatrurim Complex, South Levant. European Journal of Mineralogy, 27 (1) 123-136 doi:10.1127/ejm/2015/0027-2420

Weber, S., Schäfer, S., Saccoccio, M., Seidel, K., Kohlmann, H., Gläser, L., Schunk, S.A. (2021): Mayenite-based electride C12A7e−: an innovative synthetic method via plasma arc melting. Materials Chemistry Frontiers: 5: 1301-1314.

Localities for FluorkyuygeniteHide

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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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