Bilibinskite: Difference between revisions
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{{Short description|Telluride mineral}} |
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{{Infobox mineral |
{{Infobox mineral |
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| name = Bilibinskite |
| name = Bilibinskite |
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| caption = |
| caption = |
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| formula = Au<sub>3</sub>Cu<sub>2</sub>PbTe<sub>2</sub> |
| formula = Au<sub>3</sub>Cu<sub>2</sub>PbTe<sub>2</sub> |
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| IMAsymbol=Bb<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3 |pages=291–320|doi=10.1180/mgm.2021.43 |bibcode=2021MinM...85..291W |s2cid=235729616 |doi-access=free}}</ref> |
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| molweight = 429.89 g/mol |
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| molweight = 1,180.39 g/mol |
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| strunz = 02.BA.55 |
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| system = [[Cubic crystal system|Cubic]] |
| system = [[Cubic crystal system|Cubic]] |
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| class = [[Sulfide]] |
| class = [[Sulfide]] |
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| habit = [[Crystal habit|Massive]] |
| habit = [[Crystal habit|Massive]] |
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| twinning = |
| twinning = |
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| cleavage = |
| cleavage = None |
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| fracture = |
| fracture = |
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| tenacity = |
| tenacity = |
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| mohs = 4.5 |
| mohs = 4.5 – 5 |
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| luster = Sub-metallic |
| luster = Sub-metallic |
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| polish = |
| polish = |
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| streak = golden brown |
| streak = golden brown |
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| gravity = |
| gravity = |
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| density = |
| density = 14.27 |
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| melt = |
| melt = |
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| fusibility = |
| fusibility = |
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| solubility = |
| solubility = |
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| diaphaneity = opaque |
| diaphaneity = opaque |
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| other = [[International Mineralogical Association|IMA]] Status Approved (1978) |
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| other = |
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| references = <ref>[https://www.fmm.ru/images/e/e0/NDM_2011_46_Spiridonov2_eng.pdf Bilibinskite |
| references = <ref>[https://www.fmm.ru/images/e/e0/NDM_2011_46_Spiridonov2_eng.pdf Bilibinskite – Russian Foundation for Basic Researches]</ref><ref>[http://rruff.info/doclib/hom/bilibinskite.pdf Handbook of Mineralogy]</ref> |
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}} |
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'''Bilibinskite''' is |
'''Bilibinskite''' is an [[gold|Au]] – [[copper|Cu]] – [[lead|Pb]] [[telluride (chemistry)|telluride]]. It is a rare mineral that was named after [[Soviet]] geologist [[Yuri Alexandrovich Bilibin|Yuri Bilibin]] (1901–1952), who researched the geology of gold deposits during the time of the [[USSR]].<ref name="rev">''[[:ru:Спиридонов, Эрнст Максович|Spiridonov E.]], [[Marianna Bezsmertnaya|Bezsmertnaya M.]], [[Tatiana Chvileva|Chvileva T.]], [[Vladimir Bezsmertny|Bezsmertny V.]]'' Bilibinskite, Au<sub>3</sub>Cu<sub>2</sub>PbTe<sub>2</sub>, a new mineral gold-telluride deposits. [[International Geology Review|Intern. Geol. Rev.]] 1979. Vol. 21. P. 1411—1415.</ref> |
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==Properties== |
==Properties== |
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Bilibinskite is a [[metal]]lic [[mineral]] with a color that ranges from opaque bronze-colored to light-brown or brownish-pink. It has a sub-metallic luster, a brown |
Bilibinskite is a [[metal]]lic [[mineral]] with a color that ranges from opaque bronze-colored to light-brown or brownish-pink. It has a sub-metallic luster, a brown streak color and has no fission. Bilibinskite crystallizes in the [[Cubic crystal system|cubic system]]. It has a high relative [[density]] of 14.27. The mineral has a [[hardness]] of 4.5 to 5 and it is not radioactive. |
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==Occurrence== |
==Occurrence== |
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Bilibinskite is a very rare mineral that formed in the weathering zones of [[gold telluride]]s. The [[Type locality (geology)|type locality]] is the [[Kamchatka Peninsula]] in the [[Russian Far East]], where the mineral was discovered in 1978. It has |
Bilibinskite is a very rare mineral that formed in the weathering zones of [[gold telluride]]s. The [[Type locality (geology)|type locality]] is the [[Kamchatka Peninsula]] ([[:ru:Агинское золоторудное месторождение|Aginskoe gold deposit]]) in the [[Russian Far East]], where the mineral was discovered in 1978.<ref name="rev"/> It has also been found in [[hypogene]] ores of [[Kazakhstan]], [[Xinjiang]] and [[Tuva]].<ref>I.Y. Nekrasov, ''Geochemistry, Mineralogy and Genesis of Gold Deposits'', table 20.</ref> |
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==See also== |
==See also== |
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[[Category:Gold minerals]] |
[[Category:Gold minerals]] |
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[[Category:Lead minerals]] |
[[Category:Lead minerals]] |
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[[Category:Cubic minerals]] |
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[[Category:Telluride minerals]] |
[[Category:Telluride minerals]] |
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[[Category:Minerals described in 1978]] |
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[[nl:Bilibinskiet]] |
Latest revision as of 14:05, 29 January 2024
Bilibinskite | |
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General | |
Category | Telluride mineral |
Formula (repeating unit) | Au3Cu2PbTe2 |
IMA symbol | Bb[1] |
Strunz classification | 02.BA.55 |
Crystal system | Cubic |
Crystal class | Sulfide |
Identification | |
Formula mass | 1,180.39 g/mol |
Color | Bronze colored, light brown or brownish-pink |
Crystal habit | Massive |
Cleavage | None |
Mohs scale hardness | 4.5 – 5 |
Luster | Sub-metallic |
Streak | golden brown |
Diaphaneity | opaque |
Density | 14.27 |
Optical properties | Anisotropic |
Other characteristics | IMA Status Approved (1978) |
References | [2][3] |
Bilibinskite is an Au – Cu – Pb telluride. It is a rare mineral that was named after Soviet geologist Yuri Bilibin (1901–1952), who researched the geology of gold deposits during the time of the USSR.[4]
Properties
[edit]Bilibinskite is a metallic mineral with a color that ranges from opaque bronze-colored to light-brown or brownish-pink. It has a sub-metallic luster, a brown streak color and has no fission. Bilibinskite crystallizes in the cubic system. It has a high relative density of 14.27. The mineral has a hardness of 4.5 to 5 and it is not radioactive.
Occurrence
[edit]Bilibinskite is a very rare mineral that formed in the weathering zones of gold tellurides. The type locality is the Kamchatka Peninsula (Aginskoe gold deposit) in the Russian Far East, where the mineral was discovered in 1978.[4] It has also been found in hypogene ores of Kazakhstan, Xinjiang and Tuva.[5]
See also
[edit]References
[edit]- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Bilibinskite – Russian Foundation for Basic Researches
- ^ Handbook of Mineralogy
- ^ a b Spiridonov E., Bezsmertnaya M., Chvileva T., Bezsmertny V. Bilibinskite, Au3Cu2PbTe2, a new mineral gold-telluride deposits. Intern. Geol. Rev. 1979. Vol. 21. P. 1411—1415.
- ^ I.Y. Nekrasov, Geochemistry, Mineralogy and Genesis of Gold Deposits, table 20.