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Chiolite

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About ChioliteHide

Formula:
Na5Al3F14
Colour:
Nearly colourless, snow-white
Lustre:
Vitreous, Pearly
Hardness:
3½ - 4
Specific Gravity:
2.998
Crystal System:
Tetragonal
Name:
From the Greek χιώυ, snow, and λίθος, stone, in allusion to its appearance and similarity to cryolite (ice-stone).
This page provides mineralogical data about Chiolite.


Classification of ChioliteHide

Approved, 'Grandfathered' (first described prior to 1959)
3.CE.05

3 : HALIDES
C : Complex halides
E : Phyllo-aluminofluorides
11.6.11.1

11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
8.6.6

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
6 : Halides of Al

Physical Properties of ChioliteHide

Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
Nearly colourless, snow-white
Hardness:
3½ - 4 on Mohs scale
Cleavage:
Perfect
On {001}; on {011} distinct.
Density:
2.998 g/cm3 (Measured)    2.989 g/cm3 (Calculated)

Optical Data of ChioliteHide

Type:
Uniaxial (-)
RI values:
nω = 1.349 nε = 1.342
Max Birefringence:
δ = 0.007
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of ChioliteHide

Formula:
Na5Al3F14

Crystallography of ChioliteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/mnc
Cell Parameters:
a = 7.01 Å, c = 10.4 Å
Ratio:
a:c = 1 : 1.484
Unit Cell V:
511.06 ų (Calculated from Unit Cell)
Morphology:
Crystals dipyramidal {011}. Distinct crystals small and rare. Massive, granular.
Twinning:
On {011}, distorted into prismatic shapes at times.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0013413ChioliteJacoboni C, Leble A, Rousseau J J (1981) Determination precise de la structure de la chiolite Na5Al3F14 et etude par R.P.E. de Na5Al3F14:Cr3+ Journal of Solid State Chemistry 36 297-3041981synthetic0293
0015747ChioliteBrosset C (1938) Die kristallstruktur des chioliths Zeitschrift fur Anorganische und Allgemeine Chemie 238 201-20819380293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of ChioliteHide

Synonyms of ChioliteHide

Other Language Names for ChioliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
7 photos of Chiolite associated with CryoliteNa2NaAlF6
5 photos of Chiolite associated with PyriteFeS2
4 photos of Chiolite associated with TopazAl2(SiO4)(F,OH)2
3 photos of Chiolite associated with Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
2 photos of Chiolite associated with Chlorite Group
2 photos of Chiolite associated with JarliteNa(Sr,Na)7MgAl6F32(OH,H2O)2
2 photos of Chiolite associated with SericiteKAl2(AlSi3O10)(OH)2
2 photos of Chiolite associated with FluoriteCaF2
1 photo of Chiolite associated with ElpasoliteK2NaAlF6

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.6.1ZharchikhiteAlF(OH)2Mon.
8.6.2ChloraluminiteAlCl3 · 6H2OTrig.
8.6.3CadwaladeriteAl5(H2O)3(OH)12 · n(Cl,H2O)Amor.
8.6.4CryolithioniteNa3Al2(LiF4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.6.5CryoliteNa2NaAlF6Mon. 2/m
8.6.7ElpasoliteK2NaAlF6Iso. m3 (2/m 3) : Pa3
8.6.8WeberiteNa2Mg[AlF6]FOrth. mmm (2/m 2/m 2/m) : Immm
8.6.9Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O Iso. m3m (4/m 3 2/m) : Fd3m
8.6.10KoeneniteNa4Mg9Al4Cl12(OH)22Trig. 3m (3 2/m) : R3m
8.6.11 Chlor-manasseiteMgxAl(OH)2x+2Cl · (x-0.8)H2O
x about 1.75
8.6.12GearksutiteCa[Al(F,OH)5(H2O)]Tric. 1 : P1
8.6.13ProsopiteCaAl2F4[(OH)4-xFx]Mon. 2/m : B2/b
8.6.14YaroslaviteCa3Al2F10(OH)2 · H2OOrth.
8.6.15CarlhintzeiteCa2[AlF6]F · H2OTric.
8.6.16ColquiriiteCaLi[AlF6]Trig.
8.6.17ThomsenoliteNaCa[AlF6] · H2OMon. 2/m : P21/b
8.6.18PachnoliteNaCa[AlF6] · H2OMon. 2/m
8.6.19Zirklerite(Fe,Mg,Ca)9Al4Cl18(OH)12 · 14H2O (?)Trig.

Other InformationHide

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 ChioliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
von Wörth and Chodnev (1845-46) Verh. min. Ges.: 208 (as Chiolith).
Hermann and Auerbach (1846) Journal für praktische Chemie, Leipzig: 37: 188 (as Chiolith).
Rammelsberg (1848) Annalen der Physik, Halle, Leipzig: 74: 314.
Dana, J.D. (1850) System of Mineralogy, 3rd. Edition, New York: 234 (as Chodneffite).
Koksharov, N. von (1862) Materialien zur Mineralogie Russlands. 11 volumes with atlas: vol. 4: 389.
Naumann, C.F. (1864) Elemente der Mineralogie. Leipzig. 5th. edition: 219 (as Nipholith).
Hagemann (1866): On Some Minerals associated with the Cryolite in Greenalnd. American Journal of Science and Arts. 42, 93. (as Arksutite).
Dana, J.D. (1868) System of Mineralogy, 5th. Edition, New York. (aided by G.J. Brush): 128.
Groth (1883) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 7: 478.
Nordenskiöld, A. E. (1886) Mineralogiska bidrag. 10. Arksutit från Ivigtut i Grönland. Geologiska Föreningens i Stockholm Förhandlinger 8: 172-175
Bøggild (1912) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 51: 598.
Goldschmidt, V. (1913) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 2: 138.
Clausen (1936) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 95: 394.
Brosset (1938) Zeitschrift für anorganische und allgemeine Chemie, Hamburg, Leipzig: 238: 201.
Caglioti and Giacomello (1938) Naturwissenschaften: 26: 317.
Brosset (1943) Chemical Abstracts, Easton, PA: 37: 13.
Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 123-124.
Journal of Solid State Chemistry: 36: 297-304.

Internet Links for ChioliteHide

Localities for ChioliteHide

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.
Greenland
 
  • Sermersooq
    • Arsuk Fjord
Nordenshiöld, A. E. (1886): Mineralogiska bidrag. 10. Arksutit från Ivigtut i Grönland. Geologiska Föreningens i Stockholm Förhandlinger 8: 172-175; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 112, 124; Petersen, O.V. and Secher, K. (1993): The minerals of Greenland. Mineralogical Record 24 (2): 1-65 (p.36)
Russia (TL)
 
  • Chelyabinsk Oblast
    • Ilmen Mountains
Polyakov, V.O. (1985): Alumofluorites of the Il’meny Mountains. In: Minerals from Deposits of the Central and Southern Urals (Sverdlovsk), 3-11.; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980.
  • Zabaykalsky Krai
Victor V. Sharygin analytycal data (2012); ; ; E. V. Sklyarov, D. P. Gladkochub, A. B. Kotov, A. E. Starikova, V. V. Sharygin, S. D. Velikoslavinsky, A. M. Larin, A. M. Mazukabzov, E. V. Tolmacheva, E. A. Khromova (2016): Genesis of the Katugin rare-metal ore deposit: Magmatism versus metasomatism. Russian Journal of Pacific Geology 10, 155–167.; Starikova, A. E., Bazarova, E. P., Savel’eva, V. B., Sklyarov, E. V., Khromova, E. A., & Kanakin, S. V. (2019) Pyrochlore-Group Minerals in the Granite-Hosted Katugin Rare-Metal Deposit, Transbaikalia, Russia. Minerals, 9(8), 490.
Ukraine
 
  • Zhytomyr Oblast
Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980.
USA
 
  • Virginia
    • Amelia Co.
      • Winterham
Kearns, L.E. (1995) Alumino-fluorides from the Morefield pegmatite, Amelia County, Virginia. The Mineralogical Record: 26(6): 551-556.; Richards, R.P., Kearns, L.E., Cook, W.R. (1998) Morphology of Chiolite twins from the Morefield mine, Amelia County, Virginia. The Canadian Mineralogist: 36: 1009-1016.
 
Mineral and/or Locality  
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