Classification of Heklaite |
| IMA status: | Approved 2008 |
|---|
| Dana 8th edition ID: | 11.5.8.
11 : HALIDE COMPLEXES
5 : AmBX6 |
|---|
| mindat.org URL: | http://www.mindat.org/min-39218.html
Please feel free to link to this page. |
|---|
Type Occurrence of Heklaite |
| Type Locality: | Hekla, Iceland |
|---|
| General Appearance of Type Material: | Fine-grained mass of micrometre- to submicrometre-sized crystals. |
|---|
| Place of Conservation of Type Material: | Icelandic Institute of Natural History, Reykjavík, Iceland (NI 15513); Museum "C.L. Garavelli", Dipartimento Geomineralogico, Universita di Bari, Italy (9/nm-V28). |
|---|
| Geological Setting of type material: | In fumarolic encrustations. |
|---|
| Associated Minerals at type locality: | |
|---|
Physical Properties of Heklaite |
| Lustre: | Vitreous |
|---|
| Diaphaneity (Transparency): | Transparent |
|---|
| Colour: | Colourless |
|---|
| Streak: | White |
|---|
| Density (calculated): | 2.69 g/cm3 |
|---|
Crystallography of Heklaite |
| Crystal System: | Orthorhombic |
|---|
| Class (H-M): | mmm (2/m 2/m 2/m) - Dipyramidal |
|---|
| Space Group: | Pnma {P21/n 21/m 21/a} |
|---|
| Cell Parameters: | a = 9.3370(9) Å, b = 5.5022(5) Å, c = 9.795(1) Å
|
|---|
| Ratio: | a:b:c = 1.697 : 1 : 1.78 |
|---|
| Unit Cell Volume: | V 503.43 ų |
|---|
| Z: | 4 |
|---|
| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 4.33 | | (53) | | 4.26 | | (56) | | 3.40 | | (49) | | 3.37 | | (47) | | 3.34 | | (100) | | 2.251 | | (27) | | 2.050 | | (52) | | 2.016 | | (29) | | | ( |
|
|---|
Chemical Properties of Heklaite |
| Formula: | |
|---|
| Essential elements: | F, K, Na, Si |
|---|
| All elements listed in formula: | F, K, Na, Si |
|---|
| Analytical Data: | Average of 5 EDS analyses. Sample from the type locality.
Na (11.98)
K (18.29)
Si (13.91)
F (55.66)
Total (99.84) |
|---|
| Empirical Formula: | |
|---|
Other Names for Heklaite |
| Synonyms: | |
|---|
| Other Languages: | |
|---|
Other Information |
| Fluorescence in UV light: | Non-fluorescent. |
|---|
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
|---|
References for Heklaite |
Reference List:
- + | Garavelli, A., Balić-Žunić, T., Mitolo, D., Acquafredda, P., Leonardsen, E., Jakobson, S.P. (2010): Heklaite, KNaSiF6, a new fumarolic mineral from Hekla volcano, Iceland. Mineralogical Magazine, 74, 147-157. |
|---|
Internet Links for Heklaite |
| Search Engines: |
Look for Heklaite on Google
Look for Heklaite images on Google |
|---|
| External Links: | Look for Heklaite on WebmineralLook for Heklaite on Athena MineralogyLook for Heklaite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure Database |
|---|
| Mineral Dealers: | Buy minerals from YourMineralCollectionHeklaite specimens for sale - minfind.comBuy fine minerals and gemstones from Pala InternationalHigh-end worldwide specimens & outstanding customer serviceSearch for minerals at HeliodorSpiriferMinerals.com - high quality low pricesMineral Classics - Worldwide Collector Quality Minerals and GemsRare and Unusual minerals at Mineralogical Research Companyrare and unusual minerals mainly crystallizedDAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.Top quality minerals from Kristalle of CaliforniaFine Minerals from Weinrich Minerals, Inc. |
|---|
| Jobs: | Mining & Geology Jobs |
|---|
Localities for Heklaite |
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
can be used to jump to that position on the map.
|
|
Mineral and Locality Search
