Chiolite
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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 Chiolite
Approved, 'Grandfathered' (first described prior to 1959)
3/C.03-20
3.CE.05
3 : HALIDES
C : Complex halides
E : Phyllo-aluminofluorides
3 : HALIDES
C : Complex halides
E : Phyllo-aluminofluorides
11.6.11.1
11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
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
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
6 : Halides of Al
Physical Properties of Chiolite
Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
Nearly colourless, snow-white
Hardness:
3½ - 4 on Mohs scale
Cleavage:
Perfect
On {001}; on {011} distinct.
On {001}; on {011} distinct.
Density:
2.998 g/cm3 (Measured) 2.989 g/cm3 (Calculated)
Optical Data of Chiolite
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Chemical Properties of Chiolite
Formula:
Na5Al3F14
Elements listed:
Crystallography of Chiolite
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.
X-Ray Powder Diffraction
Image Loading
Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Type Occurrence of Chiolite
Geological Setting of Type Material:
Cryolite-bearing pegmatite.
Associated Minerals at Type Locality:
Synonyms of Chiolite
Other Language Names for Chiolite
Common Associates
Associated Minerals Based on Photo Data:
| Cryolite | 7 photos of Chiolite associated with Cryolite on mindat.org. |
| Pyrite | 5 photos of Chiolite associated with Pyrite on mindat.org. |
| Topaz | 4 photos of Chiolite associated with Topaz on mindat.org. |
| Hydrokenoralstonite | 3 photos of Chiolite associated with Hydrokenoralstonite on mindat.org. |
| Chlorite Group | 2 photos of Chiolite associated with Chlorite Group on mindat.org. |
| Jarlite | 2 photos of Chiolite associated with Jarlite on mindat.org. |
| Sericite | 2 photos of Chiolite associated with Sericite on mindat.org. |
| Fluorite | 2 photos of Chiolite associated with Fluorite on mindat.org. |
| Elpasolite | 1 photo of Chiolite associated with Elpasolite on mindat.org. |
Related Minerals - Hey's Chemical Index of Minerals Grouping
| 8.6.1 | Zharchikhite | AlF(OH)2 | Mon. |
| 8.6.2 | Chloraluminite | AlCl3 · 6H2O | Trig. |
| 8.6.3 | Cadwaladerite | AlCl(OH)2 · 4H2O | Amor. |
| 8.6.4 | Cryolithionite | Na3Li3[AlF6]2 | Iso. m3m (4/m 3 2/m) : Ia3d |
| 8.6.5 | Cryolite | Na2NaAlF6 | Mon. 2/m |
| 8.6.7 | Elpasolite | K2NaAlF6 | Iso. m3 (2/m 3) : Pa3 |
| 8.6.8 | Weberite | Na2Mg[AlF6]F | Orth. mmm (2/m 2/m 2/m) : Immm |
| 8.6.9 | Hydrokenoralstonite | Na0.5(Al,Mg)2(F,OH)6•H2O | Iso. m3m (4/m 3 2/m) : Fd3m |
| 8.6.10 | Koenenite | Na4Mg9Al4Cl12(OH)22 | Trig. 3m (3 2/m) : R3m |
| 8.6.11 | Chlor-manasseite | MgxAl(OH)2x+2Cl · (x-0.8)H2O x about 1.75 | |
| 8.6.12 | Gearksutite | Ca[Al(F,OH)5(H2O)] | Tric. 1 : P1 |
| 8.6.13 | Prosopite | CaAl2(F,OH)8 | Mon. 2/m : B2/b |
| 8.6.14 | Yaroslavite | Ca3Al2F10(OH)2 · H2O | Orth. |
| 8.6.15 | Carlhintzeite | Ca2[AlF6]F · H2O | Tric. |
| 8.6.16 | Colquiriite | CaLi[AlF6] | Trig. |
| 8.6.17 | Thomsenolite | NaCa[AlF6] · H2O | Mon. 2/m : P21/b |
| 8.6.18 | Pachnolite | NaCa[AlF6] · H2O | Mon. 2/m |
| 8.6.19 | Zirklerite | (Fe,Mg,Ca)9Al4Cl18(OH)12 · 14H2O (?) | Trig. |
Other Information
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 Chiolite
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 Chiolite
mindat.org URL:
https://www.mindat.org/min-1006.html
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Localities for Chiolite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Greenland | |
| 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 | |
| Victor V. Sharygin analytycal data (2012); ; |
| 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. |
Ukraine | |
| 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 | |
| [L.E. Kearns, 1995 - Mineralogical Record Vol 26 No.6 - "Alumino-Fluorides from the Morefield Pegmatite"]; Richards, R. P., Kearns, L. E., & Cook, W. R. (1998). Morphology of Chiolite twins from the Morefield mine, Amelia County, Virginia. Canadian mineralogist, 36, 1009-1016. |
Ivigtut Cryolite deposit, Ivittuut, Arsuk Fjord, Sermersooq, Greenland