Classification of Rosenbergite |
| IMA status: | Approved 1992 |
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| Nickel-Strunz 10th (pending) edition ID: | 3.CD.05
3 : HALIDES
C : Complex halides
D : Ino-aluminofluorides |
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| Dana 7th edition ID: | 9.3.6.1 |
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| Dana 8th edition ID: | 9.3.6.1
9 : NORMAL HALIDES
3 : AX3 |
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Type Occurrence of Rosenbergite |
| Type Locality: | Le Cetine di Cotorniano Mine (Le Cetine Mine; Cetine Mine; Rosia), Chiusdino, Siena Province, Tuscany, Italy |
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| Year of Discovery: | 1993 |
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| Geological Setting of type material: | In cavities in highly silicified limestones at the Cetine Mine, Tuscany, Itally; and as a sublimate from fumaroles in the crater of Mt. Erebus, Ross Island, Antarctica (Co-Type Localities.0 |
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Physical Properties of Rosenbergite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | Colorless |
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| Streak: | Colroless |
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| Hardness (Mohs): | 3 - 3½ |
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| Hardness (Vickers): | VHN15=103 kg/mm2 |
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| Hardness Data: | Measured |
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| Tenacity: | Brittle |
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| Cleavage: | Distinct/Good
Good on {001}. |
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| Fracture: | Irregular/Uneven |
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| Density (measured): | 2.1 g/cm3 |
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| Density (calculated): | 2.111 g/cm3 |
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Crystallography of Rosenbergite |
| Crystal System: | Tetragonal |
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| Class (H-M): | 4/m - Dipyramidal |
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| Space Group: | P4/n |
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| Cell Parameters: | a = 7.715Å, c = 3.648Å
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| Ratio: | a:c = 1 : 0.473 |
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| Unit Cell Volume: | V 217.13 ų (Calculated from Unit Cell) |
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| Z: | 2 |
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| Morphology: | Tetragonal prisms approx. 0.25 mm in size; found as aggregates of microscopic crystals. |
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| Twinning: | None reported. |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 5.47 | | (100) | | 2.44 | | (70) | | 2.03 | | (70) | | 1.775 | | (80) | | 1.725 | | (90) | | 1.388 | | (70) | | 1.306 | | (70) |
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Optical Data of Rosenbergite |
| Type: | Uniaxial (-) |
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| RI values: | nω = 1.427 nε = 1.403 |
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| Maximum Birefringence: | δ = 0.024
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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Chemical Properties of Rosenbergite |
| Formula: | |
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| Essential elements: | Al, F, H, O |
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| All elements listed in formula: | Al, F, H, O |
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Relationship of Rosenbergite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Rosenbergite |
| 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 Rosenbergite |
| Reference List: | Olmi, F., Sabelli, C., Trosti-Ferroni, R. (1993): Rosenbergite, AlF[F0.5(H2O)0.5]4•H2O, a new mineral from the Cetine Mine (Tuscany, Italy): description and crystal structure. European Journal of Mineralogy (1993): 5: 1167-1174.
Gaines, Richard V., H. Catherine, W. Skinner, Eugene E. Foord, Brian Mason, Abraham Rosenzweig (1997), Dana's New Mineralogy : The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana: 390.
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Internet Links for Rosenbergite |
| Search Engines: |
Look for Rosenbergite on Google
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| External Links: | Look for Rosenbergite on WebmineralLook for Rosenbergite on Athena MineralogyLook for Rosenbergite on WikipediaLook for Rosenbergite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Rosenbergite in the Natural History Museum (London) online catalogueRosenbergite details from Handbook of Mineralogy (PDF) |
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Localities for Rosenbergite |
The 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
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