| Reference Type | Journal (article/letter/editorial) |
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| Title | Chukotkaite, AgPb7Sb5S15, a new sulfosalt mineral from Eastern Chukotka, Russia |
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| Journal | The Canadian Mineralogist |
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| Authors | Kasatkin, Anatoly V. | Author |
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| Makovicky, Emil | Author |
| Plášil, Jakub | Author |
| Škoda, Radek | Author |
| Agakhanov, Atali A. | Author |
| Chaikovskiy, Ilya I. | Author |
| Vlasov, Evgeny A. | Author |
| Pekov, Igor V. | Author |
| Year | 2020 (September 1) | Volume | 58 |
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| Page(s) | 587-596 | Issue | 5 |
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| Publisher | Mineralogical Association of Canada |
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| DOI | doi:10.3749/canmin.2000036Search in ResearchGate |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 4565201 | Long-form Identifier | mindat:1:5:4565201:1 |
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| GUID | 5f06fb7e-fd4f-411c-af78-1aab7166efe8 |
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| Full Reference | Kasatkin, Anatoly V., Makovicky, Emil, Plášil, Jakub, Škoda, Radek, Agakhanov, Atali A., Chaikovskiy, Ilya I., Vlasov, Evgeny A., Pekov, Igor V. (2020) Chukotkaite, AgPb7Sb5S15, a new sulfosalt mineral from Eastern Chukotka, Russia. The Canadian Mineralogist, 58 (5) 587-596 doi:10.3749/canmin.2000036 |
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| Plain Text | Kasatkin, Anatoly V., Makovicky, Emil, Plášil, Jakub, Škoda, Radek, Agakhanov, Atali A., Chaikovskiy, Ilya I., Vlasov, Evgeny A., Pekov, Igor V. (2020) Chukotkaite, AgPb7Sb5S15, a new sulfosalt mineral from Eastern Chukotka, Russia. The Canadian Mineralogist, 58 (5) 587-596 doi:10.3749/canmin.2000036 |
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| In | (2020, September) The Canadian Mineralogist Vol. 58 (5) Mineralogical Association of Canada |
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| Abstract/Notes | The new sulfosalt chukotkaite, ideally AgPb7Sb5S15, was discovered in the valley of the Levyi Vulvyveem river, Amguema river basin, Iultin District, Eastern Chukotka, Chukotka Autonomous Okrug, North-Eastern region, Russia. The new mineral forms anhedral grains up to 0.4 × 0.5 mm intergrown with pyrrhotite, sphalerite, galena, stannite, quartz, and Mn-Fe-bearing clinochlore. Other associated minerals include arsenopyrite, benavidesite, diaphorite, jamesonite, owyheeite, uchucchacuaite, cassiterite, and fluorapatite. Chukotkaite is lead-grey and has metallic luster and a grey streak. It is brittle and has an uneven fracture. Neither cleavage nor parting were observed. Mohs hardness is 2–2½. Dcalc. = 6.255 g/cm3. In reflected light, chukotkaite is white, moderately anisotropic with rotation tints varying from bluish-grey to brownish-grey. No pleochroism or internal reflections are observed. The chemical composition of chukotkaite is (wt.%; electron microprobe) Ag 3.83, Pb 53.67, Sb 24.30, S 18.46, total 100.26. The empirical formula based on the sum of all atoms = 28 pfu is Ag0.93Pb6.78Sb5.22S15.07. Chukotkaite is monoclinic, space group P21/c, a = 4.0575(3), b = 35.9502(11), c = 19.2215(19) Å, β = 90.525(8)°, V = 2803.7(4) Å3, and Z = 4. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 3.52 (100) (045), 3.38 (50) (055), 3.13 (50) (065), , 2.82 (25) (066), 1.91 (50) (0 1 10). The crystal structure of chukotkaite was refined from single-crystal X-ray diffraction data to R = 0.0712 for 3307 observed reflections with Iobs > 3σ(I). Chukotkaite belongs to the group of rod-based sulfosalts. The new mineral is named after the region of its type locality: Chukotka Autonomous Okrug, North-Eastern Region, Russia. |
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