Hiortdahlite II
Valid as an unnamed mineral
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About Hiortdahlite II
Formula:
(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Crystal System:
Triclinic
Name:
For relation to Hiortdahlite I.
Isostructural with:
See also Hiortdahlite and Hiortdahlite I.
Hiortdahlite II (never submitted to IMA) is crystallographically close to Hiortdahlite I.
Originally reported from Kipawa alkaline complex, Sheffield Lake, Villedieu Township, Témiscamingue Co., Québec, Canada.
Hiortdahlite II (never submitted to IMA) is crystallographically close to Hiortdahlite I.
Originally reported from Kipawa alkaline complex, Sheffield Lake, Villedieu Township, Témiscamingue Co., Québec, Canada.
Unique Identifiers
Mindat ID:
5629
Long-form identifier:
mindat:1:1:5629:4
Similar Names
| Hiortdahlite | A valid IMA mineral species | Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3 |
IMA Classification of Hiortdahlite II
IMA status notes:
Unnamed (probably valid)
Approval history:
Unnamed, but probably valid.
Chemistry of Hiortdahlite II
Mindat Formula:
(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Element Weights:
Crystallography of Hiortdahlite II
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 11.012 Å, b = 10.342 Å, c = 7.359 Å
α = 89.92°, β = 89.92°, γ = 90.06°
α = 89.92°, β = 89.92°, γ = 90.06°
Ratio:
a:b:c = 1.065 : 1 : 0.712
Unit Cell V:
838.09 ų (Calculated from Unit Cell)
Z:
2
Other Language Names for Hiortdahlite II
Russian:Йортдалит II
Common Associates
Associations Based on Photo Data:
| 4 photos of Hiortdahlite II associated with Richterite | Na(CaNa)Mg5(Si8O22)(OH)2 |
| 1 photo of Hiortdahlite II associated with Catapleiite | Na2Zr(Si3O9) · 2H2O |
| 1 photo of Hiortdahlite II associated with Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| 1 photo of Hiortdahlite II associated with Arfvedsonite | NaNa2(Fe2+4Fe3+)Si8O22(OH)2 |
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.
Internet Links for Hiortdahlite II
mindat.org URL:
https://www.mindat.org/min-5629.html
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References for Hiortdahlite II
Reference List:
Aarden, H. M., Gittins, J. (1974) Hiortdahlite from Kipawa River, Villedieu Township Temiscaming County, Québec, Canada. The Canadian Mineralogist, 12 (4) 241-247
Merlino, S., Perchiazzi, N. (1985) The crystal structure of hiortdahlite I. TMPM Tschermaks Mineralogische und Petrographische Mitteilungen, 34 (3). 297-310 doi:10.1007/bf01082969
Merlino, S., Perchiazzi, N. (1987) The crystal structure of Hiortdahlite II. Mineralogy and Petrology, 37 (1) 25-35 doi:10.1007/bf01163156
Roda Robles, Encarnacion, Fontan, François, Monchoux, Pierre, Sørensen, Henning, De Parseval, Philippe (2001) Hiortdahlite II from the Ilímaussaq alkaline complex, South Greenland, the Tamazeght complex, Morocco, and the Iles de Los, Guinea. Geology of Greenland Survey Bulletin, 190 (190) 131-137 doi:10.34194/ggub.v190.5183
Localities for Hiortdahlite II
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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.
Canada | |
| Aarden et al. (1974) +2 other references |
Greenland | |
| Roda Robles et al. (2001) |
Guinea | |
| Roda Robles et al. (2001) +1 other reference |
Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada