Akopovaite, Li2Al4(OH)12(CO3)(H2O)3, a new Li member of the hydrotalcite supergroup from Turkestan Range, Kyrgyzstan
Akopovaite, ideally Li2Al4(OH)12(CO3)(H2O)3, is a new hydrotalcite-supergroup mineral from the Karasu-Karavshinskoye Sn deposit, Turkestan Range, Kyrgyzstan. It occurs as white or pale yellowish rosette-like aggregates that are composed of tiny curved plates up to 20-30 µm. Akopovaite is associated...
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| Veröffentlicht in: | Mineralogical magazine 2020-04, Vol.84 (2), p.301-311 |
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| creator | Karpenko, Vladimir Yu Zhitova, Elena S Pautov, Leonid A Agakhanov, Atali A Siidra, Oleg I Krzhizhanovskaya, Maria G Rassulov, Victor A Bocharov, Vladimir N |
| description | Akopovaite, ideally Li2Al4(OH)12(CO3)(H2O)3, is a new hydrotalcite-supergroup mineral from the Karasu-Karavshinskoye Sn deposit, Turkestan Range, Kyrgyzstan. It occurs as white or pale yellowish rosette-like aggregates that are composed of tiny curved plates up to 20-30 µm. Akopovaite is associated with gibbsite, quartz, albite, microcline, muscovite, montebrasite, siderite, schorl and birnessite-like Fe-Mn oxides. Akopovaite has a perfect cleavage along {001}, the mineral is transparent and very soft (VHN = 24 that corresponds to Mohs hardness of ca. 1). Dmeas = 2.12(2) g/cm3 and Dcalc = 2.106 g/cm3. The Raman spectra contain bands of carbonate groups and bands of O-H stretching vibrations. The chemical composition (wt.%, electron microprobe for Al and Fe; ICP-OES for Li; CHN method for CO2 and H2O) is Li2O 6.43, Al2O3 45.79, Fe2O3 0.27, CO2 10.09, H2O 36.1, total 98.68. The empirical formula based on (Li + Al + Fe) = 6 apfu is Li1.94(Al4.05Fe0.02)Σ4.07 (OH)12(CO3)1.03(H2O)3.03. The crystal structure was refined by the Rietveld method with RB = 0.006 and Rwp = 0.014. Akopovaite is monoclinic, C2/m, a = 5.0953(6), b = 8.877(1), c = 7.806(1) Å, β = 102.572(6)°, V = 344.61(8) A#93 and Z = 1. The polytype should be denoted as 1M. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 7.66(100)(001), 4.397(27)(020), 3.821(45)(002,021), 2.4881(27)(200), 2.2273(16)(201) and 1.9027(18)(202). Akopovaite is the first naturally occurring hydrotalcite-supergroup carbonate species of Al and Li; its synthetic analogue is known. |
| doi_str_mv | 10.1180/mgm.2020.10 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_geosc</sourceid><recordid>TN_cdi_proquest_journals_2399108914</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2399108914</sourcerecordid><originalsourceid>FETCH-LOGICAL-g134t-83f5d5d06007eb28af61918904264fe089e8cbbd7ca3ac146ff1429fbab28b513</originalsourceid><addsrcrecordid>eNpNkE1Lw0AQQBdRsFZP_oEFLy02dWZ3kybHEtSKhYBU8FY2yW76kWTjJrHUX-9KPXgaZubNm2EIuUWYIobwUBXVlAFzGZyRAYoZeiEwdk4GACzwRIAfl-SqbXcAKNBnA9LN96YxX3LbqQldbtm8FKNkMUY2ihM-Hi1YMuYTKmmtDq5NK1WlylKjabdRdHPMrelkmblp2vaNsoU1fUO1NRVd9Xav2k7W9E3WhbO_Hm1x_P6tXJMLLctW3fzFIXl_elzFC2-ZPL_E86VXIBedF3Lt534OAcBMpSyUOsAIwwgEC4RWEEYqzNI0n2WSywxFoDUKFulUOjj1kQ_J3cnbWPPZu2PWO9Pb2q1cMx5F6AwoHHV_ogpl2myr6kwdjC3zf7B76RqckDP-A5GlaVk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2399108914</pqid></control><display><type>article</type><title>Akopovaite, Li2Al4(OH)12(CO3)(H2O)3, a new Li member of the hydrotalcite supergroup from Turkestan Range, Kyrgyzstan</title><source>Cambridge Journals</source><creator>Karpenko, Vladimir Yu ; Zhitova, Elena S ; Pautov, Leonid A ; Agakhanov, Atali A ; Siidra, Oleg I ; Krzhizhanovskaya, Maria G ; Rassulov, Victor A ; Bocharov, Vladimir N</creator><creatorcontrib>Karpenko, Vladimir Yu ; Zhitova, Elena S ; Pautov, Leonid A ; Agakhanov, Atali A ; Siidra, Oleg I ; Krzhizhanovskaya, Maria G ; Rassulov, Victor A ; Bocharov, Vladimir N</creatorcontrib><description>Akopovaite, ideally Li2Al4(OH)12(CO3)(H2O)3, is a new hydrotalcite-supergroup mineral from the Karasu-Karavshinskoye Sn deposit, Turkestan Range, Kyrgyzstan. It occurs as white or pale yellowish rosette-like aggregates that are composed of tiny curved plates up to 20-30 µm. Akopovaite is associated with gibbsite, quartz, albite, microcline, muscovite, montebrasite, siderite, schorl and birnessite-like Fe-Mn oxides. Akopovaite has a perfect cleavage along {001}, the mineral is transparent and very soft (VHN = 24 that corresponds to Mohs hardness of ca. 1). Dmeas = 2.12(2) g/cm3 and Dcalc = 2.106 g/cm3. The Raman spectra contain bands of carbonate groups and bands of O-H stretching vibrations. The chemical composition (wt.%, electron microprobe for Al and Fe; ICP-OES for Li; CHN method for CO2 and H2O) is Li2O 6.43, Al2O3 45.79, Fe2O3 0.27, CO2 10.09, H2O 36.1, total 98.68. The empirical formula based on (Li + Al + Fe) = 6 apfu is Li1.94(Al4.05Fe0.02)Σ4.07 (OH)12(CO3)1.03(H2O)3.03. The crystal structure was refined by the Rietveld method with RB = 0.006 and Rwp = 0.014. Akopovaite is monoclinic, C2/m, a = 5.0953(6), b = 8.877(1), c = 7.806(1) Å, β = 102.572(6)°, V = 344.61(8) A#93 and Z = 1. The polytype should be denoted as 1M. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 7.66(100)(001), 4.397(27)(020), 3.821(45)(002,021), 2.4881(27)(200), 2.2273(16)(201) and 1.9027(18)(202). Akopovaite is the first naturally occurring hydrotalcite-supergroup carbonate species of Al and Li; its synthetic analogue is known.</description><identifier>ISSN: 0026-461X</identifier><identifier>EISSN: 1471-8022</identifier><identifier>DOI: 10.1180/mgm.2020.10</identifier><language>eng</language><publisher>London: Mineralogical Society</publisher><subject>akopovaite ; alkali metals ; Asia ; birnessite ; Carbon dioxide ; carbonates ; Central Asia ; chemical composition ; coexisting minerals ; Commonwealth of Independent States ; crystal structure ; Crystals ; dritsite ; electron probe data ; formula ; gibbsite ; hydrotalcite ; hydroxides ; Karasu-Karavshin Deposit ; lattice parameters ; lithium ; metal ores ; metals ; Mineralogy ; Minerals ; montebrasite ; new minerals ; nonsilicates ; oxides ; phosphates ; polytypism ; Quartz ; quintinite ; Raman spectra ; ring silicates ; schorl ; silicates ; space groups ; spectra ; tin ores ; tourmaline group ; Turkestan Range ; unit cell ; X-ray diffraction ; X-ray diffraction data</subject><ispartof>Mineralogical magazine, 2020-04, Vol.84 (2), p.301-311</ispartof><rights>GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from GeoScienceWorld @Alexandria, VA @USA @United States. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland</rights><rights>Copyright © Mineralogical Society of Great Britain and Ireland 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Karpenko, Vladimir Yu</creatorcontrib><creatorcontrib>Zhitova, Elena S</creatorcontrib><creatorcontrib>Pautov, Leonid A</creatorcontrib><creatorcontrib>Agakhanov, Atali A</creatorcontrib><creatorcontrib>Siidra, Oleg I</creatorcontrib><creatorcontrib>Krzhizhanovskaya, Maria G</creatorcontrib><creatorcontrib>Rassulov, Victor A</creatorcontrib><creatorcontrib>Bocharov, Vladimir N</creatorcontrib><title>Akopovaite, Li2Al4(OH)12(CO3)(H2O)3, a new Li member of the hydrotalcite supergroup from Turkestan Range, Kyrgyzstan</title><title>Mineralogical magazine</title><description>Akopovaite, ideally Li2Al4(OH)12(CO3)(H2O)3, is a new hydrotalcite-supergroup mineral from the Karasu-Karavshinskoye Sn deposit, Turkestan Range, Kyrgyzstan. It occurs as white or pale yellowish rosette-like aggregates that are composed of tiny curved plates up to 20-30 µm. Akopovaite is associated with gibbsite, quartz, albite, microcline, muscovite, montebrasite, siderite, schorl and birnessite-like Fe-Mn oxides. Akopovaite has a perfect cleavage along {001}, the mineral is transparent and very soft (VHN = 24 that corresponds to Mohs hardness of ca. 1). Dmeas = 2.12(2) g/cm3 and Dcalc = 2.106 g/cm3. The Raman spectra contain bands of carbonate groups and bands of O-H stretching vibrations. The chemical composition (wt.%, electron microprobe for Al and Fe; ICP-OES for Li; CHN method for CO2 and H2O) is Li2O 6.43, Al2O3 45.79, Fe2O3 0.27, CO2 10.09, H2O 36.1, total 98.68. The empirical formula based on (Li + Al + Fe) = 6 apfu is Li1.94(Al4.05Fe0.02)Σ4.07 (OH)12(CO3)1.03(H2O)3.03. The crystal structure was refined by the Rietveld method with RB = 0.006 and Rwp = 0.014. Akopovaite is monoclinic, C2/m, a = 5.0953(6), b = 8.877(1), c = 7.806(1) Å, β = 102.572(6)°, V = 344.61(8) A#93 and Z = 1. The polytype should be denoted as 1M. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 7.66(100)(001), 4.397(27)(020), 3.821(45)(002,021), 2.4881(27)(200), 2.2273(16)(201) and 1.9027(18)(202). Akopovaite is the first naturally occurring hydrotalcite-supergroup carbonate species of Al and Li; its synthetic analogue is known.</description><subject>akopovaite</subject><subject>alkali metals</subject><subject>Asia</subject><subject>birnessite</subject><subject>Carbon dioxide</subject><subject>carbonates</subject><subject>Central Asia</subject><subject>chemical composition</subject><subject>coexisting minerals</subject><subject>Commonwealth of Independent States</subject><subject>crystal structure</subject><subject>Crystals</subject><subject>dritsite</subject><subject>electron probe data</subject><subject>formula</subject><subject>gibbsite</subject><subject>hydrotalcite</subject><subject>hydroxides</subject><subject>Karasu-Karavshin Deposit</subject><subject>lattice parameters</subject><subject>lithium</subject><subject>metal ores</subject><subject>metals</subject><subject>Mineralogy</subject><subject>Minerals</subject><subject>montebrasite</subject><subject>new minerals</subject><subject>nonsilicates</subject><subject>oxides</subject><subject>phosphates</subject><subject>polytypism</subject><subject>Quartz</subject><subject>quintinite</subject><subject>Raman spectra</subject><subject>ring silicates</subject><subject>schorl</subject><subject>silicates</subject><subject>space groups</subject><subject>spectra</subject><subject>tin ores</subject><subject>tourmaline group</subject><subject>Turkestan Range</subject><subject>unit cell</subject><subject>X-ray diffraction</subject><subject>X-ray diffraction data</subject><issn>0026-461X</issn><issn>1471-8022</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNpNkE1Lw0AQQBdRsFZP_oEFLy02dWZ3kybHEtSKhYBU8FY2yW76kWTjJrHUX-9KPXgaZubNm2EIuUWYIobwUBXVlAFzGZyRAYoZeiEwdk4GACzwRIAfl-SqbXcAKNBnA9LN96YxX3LbqQldbtm8FKNkMUY2ihM-Hi1YMuYTKmmtDq5NK1WlylKjabdRdHPMrelkmblp2vaNsoU1fUO1NRVd9Xav2k7W9E3WhbO_Hm1x_P6tXJMLLctW3fzFIXl_elzFC2-ZPL_E86VXIBedF3Lt534OAcBMpSyUOsAIwwgEC4RWEEYqzNI0n2WSywxFoDUKFulUOjj1kQ_J3cnbWPPZu2PWO9Pb2q1cMx5F6AwoHHV_ogpl2myr6kwdjC3zf7B76RqckDP-A5GlaVk</recordid><startdate>202004</startdate><enddate>202004</enddate><creator>Karpenko, Vladimir Yu</creator><creator>Zhitova, Elena S</creator><creator>Pautov, Leonid A</creator><creator>Agakhanov, Atali A</creator><creator>Siidra, Oleg I</creator><creator>Krzhizhanovskaya, Maria G</creator><creator>Rassulov, Victor A</creator><creator>Bocharov, Vladimir N</creator><general>Mineralogical Society</general><general>Cambridge University Press</general><scope>3V.</scope><scope>7RQ</scope><scope>7XB</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>M2O</scope><scope>MBDVC</scope><scope>PCBAR</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PKEHL</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>U9A</scope></search><sort><creationdate>202004</creationdate><title>Akopovaite, Li2Al4(OH)12(CO3)(H2O)3, a new Li member of the hydrotalcite supergroup from Turkestan Range, Kyrgyzstan</title><author>Karpenko, Vladimir Yu ; Zhitova, Elena S ; Pautov, Leonid A ; Agakhanov, Atali A ; Siidra, Oleg I ; Krzhizhanovskaya, Maria G ; Rassulov, Victor A ; Bocharov, Vladimir N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g134t-83f5d5d06007eb28af61918904264fe089e8cbbd7ca3ac146ff1429fbab28b513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>akopovaite</topic><topic>alkali metals</topic><topic>Asia</topic><topic>birnessite</topic><topic>Carbon dioxide</topic><topic>carbonates</topic><topic>Central Asia</topic><topic>chemical composition</topic><topic>coexisting minerals</topic><topic>Commonwealth of Independent States</topic><topic>crystal structure</topic><topic>Crystals</topic><topic>dritsite</topic><topic>electron probe data</topic><topic>formula</topic><topic>gibbsite</topic><topic>hydrotalcite</topic><topic>hydroxides</topic><topic>Karasu-Karavshin Deposit</topic><topic>lattice parameters</topic><topic>lithium</topic><topic>metal ores</topic><topic>metals</topic><topic>Mineralogy</topic><topic>Minerals</topic><topic>montebrasite</topic><topic>new minerals</topic><topic>nonsilicates</topic><topic>oxides</topic><topic>phosphates</topic><topic>polytypism</topic><topic>Quartz</topic><topic>quintinite</topic><topic>Raman spectra</topic><topic>ring silicates</topic><topic>schorl</topic><topic>silicates</topic><topic>space groups</topic><topic>spectra</topic><topic>tin ores</topic><topic>tourmaline group</topic><topic>Turkestan Range</topic><topic>unit cell</topic><topic>X-ray diffraction</topic><topic>X-ray diffraction data</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Karpenko, Vladimir Yu</creatorcontrib><creatorcontrib>Zhitova, Elena S</creatorcontrib><creatorcontrib>Pautov, Leonid A</creatorcontrib><creatorcontrib>Agakhanov, Atali A</creatorcontrib><creatorcontrib>Siidra, Oleg I</creatorcontrib><creatorcontrib>Krzhizhanovskaya, Maria G</creatorcontrib><creatorcontrib>Rassulov, Victor A</creatorcontrib><creatorcontrib>Bocharov, Vladimir N</creatorcontrib><collection>ProQuest Central (Corporate)</collection><collection>Career & Technical Education Database</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><jtitle>Mineralogical magazine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Karpenko, Vladimir Yu</au><au>Zhitova, Elena S</au><au>Pautov, Leonid A</au><au>Agakhanov, Atali A</au><au>Siidra, Oleg I</au><au>Krzhizhanovskaya, Maria G</au><au>Rassulov, Victor A</au><au>Bocharov, Vladimir N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Akopovaite, Li2Al4(OH)12(CO3)(H2O)3, a new Li member of the hydrotalcite supergroup from Turkestan Range, Kyrgyzstan</atitle><jtitle>Mineralogical magazine</jtitle><date>2020-04</date><risdate>2020</risdate><volume>84</volume><issue>2</issue><spage>301</spage><epage>311</epage><pages>301-311</pages><issn>0026-461X</issn><eissn>1471-8022</eissn><abstract>Akopovaite, ideally Li2Al4(OH)12(CO3)(H2O)3, is a new hydrotalcite-supergroup mineral from the Karasu-Karavshinskoye Sn deposit, Turkestan Range, Kyrgyzstan. It occurs as white or pale yellowish rosette-like aggregates that are composed of tiny curved plates up to 20-30 µm. Akopovaite is associated with gibbsite, quartz, albite, microcline, muscovite, montebrasite, siderite, schorl and birnessite-like Fe-Mn oxides. Akopovaite has a perfect cleavage along {001}, the mineral is transparent and very soft (VHN = 24 that corresponds to Mohs hardness of ca. 1). Dmeas = 2.12(2) g/cm3 and Dcalc = 2.106 g/cm3. The Raman spectra contain bands of carbonate groups and bands of O-H stretching vibrations. The chemical composition (wt.%, electron microprobe for Al and Fe; ICP-OES for Li; CHN method for CO2 and H2O) is Li2O 6.43, Al2O3 45.79, Fe2O3 0.27, CO2 10.09, H2O 36.1, total 98.68. The empirical formula based on (Li + Al + Fe) = 6 apfu is Li1.94(Al4.05Fe0.02)Σ4.07 (OH)12(CO3)1.03(H2O)3.03. The crystal structure was refined by the Rietveld method with RB = 0.006 and Rwp = 0.014. Akopovaite is monoclinic, C2/m, a = 5.0953(6), b = 8.877(1), c = 7.806(1) Å, β = 102.572(6)°, V = 344.61(8) A#93 and Z = 1. The polytype should be denoted as 1M. The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are: 7.66(100)(001), 4.397(27)(020), 3.821(45)(002,021), 2.4881(27)(200), 2.2273(16)(201) and 1.9027(18)(202). Akopovaite is the first naturally occurring hydrotalcite-supergroup carbonate species of Al and Li; its synthetic analogue is known.</abstract><cop>London</cop><pub>Mineralogical Society</pub><doi>10.1180/mgm.2020.10</doi><tpages>11</tpages></addata></record> |
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| subjects | akopovaite alkali metals Asia birnessite Carbon dioxide carbonates Central Asia chemical composition coexisting minerals Commonwealth of Independent States crystal structure Crystals dritsite electron probe data formula gibbsite hydrotalcite hydroxides Karasu-Karavshin Deposit lattice parameters lithium metal ores metals Mineralogy Minerals montebrasite new minerals nonsilicates oxides phosphates polytypism Quartz quintinite Raman spectra ring silicates schorl silicates space groups spectra tin ores tourmaline group Turkestan Range unit cell X-ray diffraction X-ray diffraction data |
| title | Akopovaite, Li2Al4(OH)12(CO3)(H2O)3, a new Li member of the hydrotalcite supergroup from Turkestan Range, Kyrgyzstan |
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