Classification of Jørgensenite |
| IMA status: | Approved 1995 |
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| Strunz 8th edition ID: | 3/B.03-48
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| Nickel-Strunz 10th (pending) edition ID: | 3.CC.20
3 : HALIDES C : Complex halides C : Soro-aluminofluorides |
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Type Occurrence of Jørgensenite |
| Type Locality: | Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Firth, Arsuk, Kitaa (West Greenland) Province, Greenland |
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Physical Properties of Jørgensenite |
| Lustre: | Vitreous |
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| Colour: | Colourless |
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| Streak: | White |
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| Hardness (Mohs): | 3½ - 4 |
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Crystallography of Jørgensenite |
| Crystal System: | Monoclinic |
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| Class (H-M): | 2/m - Prismatic |
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| Cell Parameters: | a = 16.059(7) Å, b = 10.974(4) Å, c = 7.277(3) Å β = 101.70(3)° |
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| Ratio: | a:b:c = 1.463 : 1 : 0.663 |
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| Unit Cell Volume: | V 1,255.79 ų (Calculated from Unit Cell) |
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| Z: | 1 |
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| Morphology: | Prisms elongated along [010]. |
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| Comment: | SG C2/m. |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 7.844 | | (8) | | 3.643 | | (9) | | 3.453 | | (10) | | 3.193 | | (10) | | 3.112 | | (9) | | 2.989 | | (9) |
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Optical Data of Jørgensenite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.436 nβ = 1.442 nγ = 1.442 |
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| Maximum Birefringence: | δ = 0.006
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Moderate |
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| Dispersion: | dispersion not observed |
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Chemical Properties of Jørgensenite |
| Formula: | |
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| Essential elements: | Al, F, H, Na, O, Sr |
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| All elements listed in formula: | Al, Ba, F, H, Na, O, Sr |
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Relationship of Jørgensenite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Jørgensenite |
| Synonyms: | |
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| Other Languages: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Jørgensenite |
| Reference List: | Pauly, H., F.C. Hawthorne, P.C. Burns, and G.D. Ventura (1997) Jørgensenite, Na2(Sr, Ba)14Na2Al12F64(OH, F)4, a new aluminofluoride mineral from Ivigtut, Greenland. Can. Mineral., 35, 175–179.
Hawthorne, F.C. & Burns, P.C. (1997): The crystal structure of jørgensenite. Can. Mineral., 35, 1509-1513.
Mineralogical Record: 28: 485.
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Internet Links for Jørgensenite |
| Search Engines: |
Look for Jørgensenite on Google
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| External Links: | Look for Jørgensenite on WebmineralLook for Jørgensenite on Athena MineralogyLook for Jørgensenite on WikipediaLook for Jørgensenite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Jørgensenite in the Natural History Museum (London) online catalogueJørgensenite details from Handbook of Mineralogy (PDF) |
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Localities for Jørgensenite |
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the  symbol to view information about a locality.
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