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Fluorkyuygenite

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About FluorkyuygeniteHide

Formula:
Ca12Al14O32[(H2O)4F2]
Colour:
Colourless
Lustre:
Vitreous
Hardness:
5 - 5½
Crystal System:
Isometric
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.


Classification of FluorkyuygeniteHide

Approved
Approval Year:
2013

Physical Properties of FluorkyuygeniteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless
Comment:
In places with greenish or yellowish tint
Streak:
White
Hardness:
5 - 5½ on Mohs scale
Hardness:
VHN50=712 kg/mm2 - Vickers

Optical Data of FluorkyuygeniteHide

Type:
Isotropic
RI values:
n = 1.610(3)
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Moderate
Type:
Isotropic

Chemical Properties of FluorkyuygeniteHide

Formula:
Ca12Al14O32[(H2O)4F2]
Common Impurities:
Fe(III),Si,OH

Crystallography of FluorkyuygeniteHide

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
I4 3d
Cell Parameters:
a = 11.966(2) Å
Unit Cell V:
1,713.35 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.885(41)
3.198(46)
2.992(61)
2.676(100)
2.443(45)
2.185(32)
1.659(27)
1.599(26)
Comments:
From Type Description.

Type Occurrence of FluorkyuygeniteHide

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:

Synonyms of FluorkyuygeniteHide

Relationship of Fluorkyuygenite to other SpeciesHide

Other Members of this group:
ChlorkyuygeniteCa12Al14O32[(H2O)4Cl2]Iso. 4 3m
ChlormayeniteCa12Al14O32[◻4Cl2]Iso. 4 3m : I4 3d
FluormayeniteCa12Al14O32F2Iso. 4 3m : I4 3d

Common AssociatesHide

Associated Minerals Based on Photo Data:
Shulamitite5 photos of Fluorkyuygenite associated with Shulamitite on mindat.org.
Oldhamite5 photos of Fluorkyuygenite associated with Oldhamite on mindat.org.
Larnite5 photos of Fluorkyuygenite associated with Larnite on mindat.org.

Fluorescence of FluorkyuygeniteHide

Does not show fluorescence

Other InformationHide

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.

References for FluorkyuygeniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Galuskin, E.V., Gfeller, F., Armbruster, T., Sharygin, V.V., Galuskina, I.O., Krivovichev, S.V., Vapnik, Y., Murashko, M., Dzierz˙anowski, P. and Wirth, R. (2013) Fluorkyuygenite, IMA 2013-043. CNMNC Newsletter No. 17, October 2013, page 3000. Mineralogical Magazine: 77: 2997-3005.
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.

Internet Links for FluorkyuygeniteHide

Localities for FluorkyuygeniteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Israel (TL)
 
  • Negev
    • Hatrurim Formation
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
Mineral and/or Locality  
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