Classification of Challacolloite |
| IMA status: | Approved 2005 |
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| Strunz 8th edition ID: | 3/D.0-
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| Strunz 9th edition ID: | 3.DC.
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| Nickel-Strunz 10th (pending) edition ID: | 3.AA.55
3 : HALIDES A : Simple halides, without H2O A : M:X = 1:1, 2:3, 3:5, etc. |
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| Dana 8th edition ID: | 11.4.2.1
11 : HALIDE COMPLEXES 4 : AmBX5·xH2O |
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| mindat.org URL: | http://www.mindat.org/min-27422.html Please feel free to link to this page. |
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Type Occurrence of Challacolloite |
| Type Locality: | Lolon Mine (Challacollo Mine), Challacollo, Iquique Province, Tarapacá Region, Chile |
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| General Appearance of Type Material: | thin crusts |
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| Geological Setting of type material: | hydrothermal phases |
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| Associated Minerals at type locality: | |
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Occurrences of Challacolloite |
| Geological Setting: | as a product of fumarole activity, on cavernous leucotephritic lava |
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Physical Properties of Challacolloite |
| Lustre: | Adamantine |
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| Colour: | Colourless to white |
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| Hardness (Mohs): | 2 - 3 |
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| Density (calculated): | 4.77 g/cm3 |
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Crystallography of Challacolloite |
| Crystal System: | Monoclinic |
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| Class (H-M): | 2/m - Prismatic |
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| Space Group: | P21/b (P1 1 21/b) [P21/c] {P1 21/c 1} {P21/a} |
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| Cell Parameters: | a = 8.864Å, b = 7.932Å, c = 12.491Å β = 90.153° |
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| Ratio: | a:b:c = 1.117 : 1 : 1.575 |
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| Unit Cell Volume: | V 878.2 ų |
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| Z: | 4 |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 3.686 | | (100) | | 3.609 | | (49) | | 2.669 | | (42) | | 8.855 | | (39) |
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| Comments: | Format: d/Å (I/%) (hkl) |
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Optical Data of Challacolloite |
| Type: | Biaxial (+) |
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| RI values: | nα = 2.004 nβ = 2.010 nγ = 2.024 |
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| 2V: | Calculated: 67° |
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| Maximum Birefringence: | δ = 0.020
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Very High |
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Chemical Properties of Challacolloite |
| Formula: | |
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| All elements listed in formula: | Cl, K, Pb |
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Relationship of Challacolloite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Challacolloite |
| 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 Challacolloite |
| Reference List: | J. Schlüter, D. Pohl and S. Britvin: "The new mineral challacolloite, KPb2Cl5, the natural occurrence of a technically known laser material", N. Jb. Min. Abh. 182(1):95-101 (2005) |
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Articles/Blogs about Challacolloite |
Internet Links for Challacolloite |
| Search Engines: |
Look for Challacolloite on Google
Look for Challacolloite images on Google |
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| External Links: | Look for Challacolloite on WebmineralLook for Challacolloite on Athena MineralogyLook for Challacolloite on WikipediaLook for Challacolloite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Challacolloite in the Natural History Museum (London) online catalogue |
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| Jobs: | Mining & Geology Jobs |
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Localities for Challacolloite |
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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