Classification of Amicite |
| IMA status: | Approved |
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| Strunz 8th edition ID: | 8/J.25-10
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| Nickel-Strunz 10th (pending) edition ID: | 9.GC.05
9 : SILICATES (Germanates) G : Tektosilicates with zeolitic H2O; zeolite family C : Chains of doubly-connected 4-membered rings |
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| Dana 8th edition ID: | 77.1.3.2
77 : TECTOSILICATES Zeolites 1 : Zeolite group - True zeolites |
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| mindat.org URL: | http://www.mindat.org/min-199.html Please feel free to link to this page. |
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Type Occurrence of Amicite |
| Type Locality: | Höwenegg (Hewenegg) quarry, Immendingen, Hegau, Baden-Württemberg, Germany |
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| Place of Conservation of Type Material: | Smithsonian 145843 |
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| Year of Discovery: | 1979 |
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Occurrences of Amicite |
| Geological Setting: | Nepheline bearing rocks. |
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Physical Properties of Amicite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | Colorless |
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| Streak: | White |
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| Hardness (Mohs): | 4½ |
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| Cleavage: | None Observed |
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| Fracture: | Conchoidal |
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| Density (measured): | 2.06 - 2.23 g/cm3 |
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| Density (calculated): | 2.16 g/cm3 |
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Crystallography of Amicite |
| Crystal System: | Monoclinic |
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| Class (H-M): | 2 - Sphenoidal |
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| Cell Parameters: | a = 10.22Å, b = 10.42Å, c = 9.88Å β = 88.32° |
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| Ratio: | a:b:c = 0.981 : 1 : 0.948 |
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| Unit Cell Volume: | V 1,051.69 ų (Calculated from Unit Cell) |
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| Z: | 2 |
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| Morphology: | Pseudotetragonal pyramidal crystals to 5mm |
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Optical Data of Amicite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.485 nβ = 1.490 nγ = 1.494 |
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| 2V: | Measured: 82° |
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| Maximum Birefringence: | δ = 0.009
 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: | very weak |
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Chemical Properties of Amicite |
| Formula: | |
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| Essential elements: | Al, H, K, Na, O, Si |
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| All elements listed in formula: | Al, H, K, Na, O, Si |
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| Common Impurities: | Fe,Mg,Ca,Sr,Ba |
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Relationship of Amicite to other Species |
| Member of Group: | |
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Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Amicite |
| 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 Amicite |
| Reference List: | Acta Crystallographica: B35: 2866-2869.
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Internet Links for Amicite |
| Search Engines: |
Look for Amicite on Google
Look for Amicite images on Google |
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| External Links: | Look for Amicite on WebmineralLook for Amicite on Athena MineralogyLook for Amicite on WikipediaLook for Amicite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Amicite in the Natural History Museum (London) online catalogueAmicite details from Handbook of Mineralogy (PDF) |
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| Jobs: | Mining & Geology Jobs |
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Localities for Amicite |
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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