Classification of Mutnovskite |
| IMA status: | Approved 2004 |
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| Nickel-Strunz 10th (pending) edition ID: | 2.GC.50
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.) G : Sulfarsenites, sulfantimonites, sulfbismuthites C : Poly-sulfarsenites |
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Type Occurrence of Mutnovskite |
| Type Locality: | Mutnovsky volcano, Kamchatka Oblast', Far-Eastern Region, Russia |
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| General Appearance of Type Material: | microscopic short-prismatic crystals up to 100 μm across |
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| Geological Setting of type material: | high-temperature fumarole |
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| Associated Minerals at type locality: | |
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Physical Properties of Mutnovskite |
| Diaphaneity (Transparency): | Translucent on thin edges, Opaque |
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| Colour: | ruby, dark red to blue |
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| Hardness (Mohs): | 2 |
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| Tenacity: | Fragile |
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| Cleavage: | None Observed |
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| Fracture: | None observed |
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Crystallography of Mutnovskite |
| Crystal System: | Orthorhombic |
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| Class (H-M): | mmm (2/m 2/m 2/m) - Dipyramidal |
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| Space Group: | Pnma (P21/n 21/m 21/a) |
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| Cell Parameters: | a = 11.543Å, b = 6.6764Å, c = 9.359Å
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| Ratio: | a:b:c = 1.729 : 1 : 1.402 |
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| Unit Cell Volume: | V 721.3 ų |
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| Z: | 4 |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 4.69 | | (32) | | 4.37 | | (67) | | 3.34 | | (73) | | 3.19 | | (100) | | 2.715 | | (61) | | 2.648 | | (66) | | 2.539 | | (31) | | 2.455 | | (29) |
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| Comments: | Format: d/Å (I/%) (hkl) |
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Chemical Properties of Mutnovskite |
| Formula: | |
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| All elements listed in formula: | As, Cl, I, Pb, S |
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| Analyical Data: | average values out of four electron microprobe analyses
calculated formula based on a total of 7 atoms
Pb (62.0)
As (11.0)
Bi (0.6)
S (14.4)
Se (0.2)
I (8.9)
Cl (2.44)
Br (1.1)
Cu (0.03)
Fe (0.01)
sum 100.7 wt.-% |
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| Empirical Formula: | |
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| Common Impurities: | Fe,Cu,Se,Bi |
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Relationship of Mutnovskite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Mutnovskite |
| 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 Mutnovskite |
| Reference List: | Zelenski, M., Balić-Žunić, T., Bindi, L., Garavelli, A., Makovický, E., Pinto, D., Vurro, F.: "First occurrence of iodine in natural sulfosalts: The case of mutnovskite, Pb2AsS3(I,Cl,Br), a new mineral from Mutnovsky volcano, Kamchatka Peninsula, Russian Federation", American Mineralogist 91:21-28 (2006)
L. Bindi, A.Garavelli, D. Pinto, G.Pratesi and F. Vurro:
Ordered distribution of I and Cl in the low-temperature crystal structure of mutnovskite, Pb4As2S6ICl: An X-ray single-crystal study:
J. Solid State Chem. 18, 306-312(2008)
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Articles/Blogs about Mutnovskite |
Internet Links for Mutnovskite |
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| External Links: | Look for Mutnovskite on WebmineralLook for Mutnovskite on Athena MineralogyLook for Mutnovskite on WikipediaLook for Mutnovskite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Mutnovskite in the Natural History Museum (London) online catalogue |
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Localities for Mutnovskite |