Isselite, Cu6(SO4)(OH)10(H2O)4·H2O, a new mineral species from eastern Liguria, Italy
The new mineral isselite, Cu6(SO4)(OH)10(H2O)4·H2O, has been discovered in the Lagoscuro mine, Monte Ramazzo mining complex, Genoa, Eastern Liguria, Italy. It occurs as sprays of blue acicular crystals, up to 0.1 mm long, associated with brochantite and posnjakite. Streak is light blue and the lustr...
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| Veröffentlicht in: | Mineralogical magazine 2020-10, Vol.84 (5), p.653-661 |
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| creator | Biagioni, Cristian Belmonte, Donato Carbone, Cristina Cabella, Roberto Demitri, Nicola Perchiazzi, Natale Kampf, Anthony R Bosi, Ferdinando |
| description | The new mineral isselite, Cu6(SO4)(OH)10(H2O)4·H2O, has been discovered in the Lagoscuro mine, Monte Ramazzo mining complex, Genoa, Eastern Liguria, Italy. It occurs as sprays of blue acicular crystals, up to 0.1 mm long, associated with brochantite and posnjakite. Streak is light blue and the lustre is vitreous. Isselite is brittle, with irregular fracture and good cleavage on {001} and {100}. Measured density is 3.00(2) g/cm3. Isselite is optically biaxial (-), with α = 1.599(2), β = 1.633(2) and γ = 1.647(2) (determined in white light). The measured 2V is 63.6(5)°. Dispersion is moderate, with r > v. The optical orientation is X = b, Y = c and Z = a. Isselite is pleochroic, with X = light blue, Y = blue, Z = blue; X 4σ(Fo). It shows a layered structure formed by zig-zag {001} layers of Cu-centred polyhedra. Sulfate groups occur in the interlayer along with one H2O group. Isselite is chemically related to redgillite and montetrisaite. |
| doi_str_mv | 10.1180/mgm.2020.50 |
| format | Article |
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It occurs as sprays of blue acicular crystals, up to 0.1 mm long, associated with brochantite and posnjakite. Streak is light blue and the lustre is vitreous. Isselite is brittle, with irregular fracture and good cleavage on {001} and {100}. Measured density is 3.00(2) g/cm3. Isselite is optically biaxial (-), with α = 1.599(2), β = 1.633(2) and γ = 1.647(2) (determined in white light). The measured 2V is 63.6(5)°. Dispersion is moderate, with r > v. The optical orientation is X = b, Y = c and Z = a. Isselite is pleochroic, with X = light blue, Y = blue, Z = blue; X << Z < Y. Electron microprobe analyses give (wt.%): SO3 11.45(21), MgO 0.31(7), CoO 1.07(14), NiO 9.41(90), CuO 51.29(126), ZnO 1.10(20), H2Ocalc 24.21, total 98.84. The empirical formula of isselite, based on Σ(Mg,Co,Ni,Cu,Zn) = 6 atoms per formula unit, is (Cu4.80Ni0.94Co0.11Zn0.10Mg0.06)Σ6.00(S1.06O4.19)(OH)10·5H2 O. Isselite is orthorhombic, space group Pmn21, with unit-cell parameters a = 6.8070(14), b = 5.8970(12), c = 20.653(4) Å, V = 829.0(3) Å3 and Z = 2. The crystal structure of isselite was refined from single-crystal X-ray diffraction data to R1 = 0.067 on the basis of 2964 reflections with Fo > 4σ(Fo). It shows a layered structure formed by zig-zag {001} layers of Cu-centred polyhedra. Sulfate groups occur in the interlayer along with one H2O group. Isselite is chemically related to redgillite and montetrisaite.</description><identifier>ISSN: 0026-461X</identifier><identifier>EISSN: 1471-8022</identifier><identifier>DOI: 10.1180/mgm.2020.50</identifier><language>eng</language><publisher>London: Mineralogical Society</publisher><subject>cell dimensions ; copper minerals ; crystal chemistry ; crystal structure ; Crystals ; Europe ; formula ; Genoa Italy ; Geology ; isselite ; Italy ; lattice parameters ; Liguria Italy ; Logoscuro Mine ; Mineralogy ; Minerals ; Mining ; Monte Ramazzo Mine ; montetrisaite ; Museums ; new minerals ; nonsilicates ; redgillite ; Southern Europe ; space groups ; Spectrum analysis ; Sprays ; sulfates ; unit cell ; X-ray diffraction ; X-ray diffraction data</subject><ispartof>Mineralogical magazine, 2020-10, Vol.84 (5), p.653-661</ispartof><rights>GeoRef, Copyright 2021, 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><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Biagioni, Cristian</creatorcontrib><creatorcontrib>Belmonte, Donato</creatorcontrib><creatorcontrib>Carbone, Cristina</creatorcontrib><creatorcontrib>Cabella, Roberto</creatorcontrib><creatorcontrib>Demitri, Nicola</creatorcontrib><creatorcontrib>Perchiazzi, Natale</creatorcontrib><creatorcontrib>Kampf, Anthony R</creatorcontrib><creatorcontrib>Bosi, Ferdinando</creatorcontrib><title>Isselite, Cu6(SO4)(OH)10(H2O)4·H2O, a new mineral species from eastern Liguria, Italy</title><title>Mineralogical magazine</title><description>The new mineral isselite, Cu6(SO4)(OH)10(H2O)4·H2O, has been discovered in the Lagoscuro mine, Monte Ramazzo mining complex, Genoa, Eastern Liguria, Italy. It occurs as sprays of blue acicular crystals, up to 0.1 mm long, associated with brochantite and posnjakite. Streak is light blue and the lustre is vitreous. Isselite is brittle, with irregular fracture and good cleavage on {001} and {100}. Measured density is 3.00(2) g/cm3. Isselite is optically biaxial (-), with α = 1.599(2), β = 1.633(2) and γ = 1.647(2) (determined in white light). The measured 2V is 63.6(5)°. Dispersion is moderate, with r > v. The optical orientation is X = b, Y = c and Z = a. Isselite is pleochroic, with X = light blue, Y = blue, Z = blue; X << Z < Y. Electron microprobe analyses give (wt.%): SO3 11.45(21), MgO 0.31(7), CoO 1.07(14), NiO 9.41(90), CuO 51.29(126), ZnO 1.10(20), H2Ocalc 24.21, total 98.84. The empirical formula of isselite, based on Σ(Mg,Co,Ni,Cu,Zn) = 6 atoms per formula unit, is (Cu4.80Ni0.94Co0.11Zn0.10Mg0.06)Σ6.00(S1.06O4.19)(OH)10·5H2 O. Isselite is orthorhombic, space group Pmn21, with unit-cell parameters a = 6.8070(14), b = 5.8970(12), c = 20.653(4) Å, V = 829.0(3) Å3 and Z = 2. The crystal structure of isselite was refined from single-crystal X-ray diffraction data to R1 = 0.067 on the basis of 2964 reflections with Fo > 4σ(Fo). It shows a layered structure formed by zig-zag {001} layers of Cu-centred polyhedra. Sulfate groups occur in the interlayer along with one H2O group. Isselite is chemically related to redgillite and montetrisaite.</description><subject>cell dimensions</subject><subject>copper minerals</subject><subject>crystal chemistry</subject><subject>crystal structure</subject><subject>Crystals</subject><subject>Europe</subject><subject>formula</subject><subject>Genoa Italy</subject><subject>Geology</subject><subject>isselite</subject><subject>Italy</subject><subject>lattice parameters</subject><subject>Liguria Italy</subject><subject>Logoscuro Mine</subject><subject>Mineralogy</subject><subject>Minerals</subject><subject>Mining</subject><subject>Monte Ramazzo Mine</subject><subject>montetrisaite</subject><subject>Museums</subject><subject>new minerals</subject><subject>nonsilicates</subject><subject>redgillite</subject><subject>Southern Europe</subject><subject>space groups</subject><subject>Spectrum analysis</subject><subject>Sprays</subject><subject>sulfates</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>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNpNjk1Lw0AQhhdRsFZP_oEFLy02dWazu0mOUqotFHLwA29lTSYhJR91N6H4y7z7y1ypB2HgHXgfZh7GrhHmiDHcNWUzFyBgruCEjVBGGMQgxCkbAQgdSI1v5-zCuR0ASlRixF7XzlFd9TTji0FPnlI5naSrKcJkJdKp_P7yMeOGt3TgTdWSNTV3e8oqcrywXcPJuJ5syzdVOdjKzPi6N_XnJTsrTO3o6i_H7OVh-bxYBZv0cb243wQlRgiBTHQWgkAEJUIlhYYw80seFaGfRMvEN1mhVJ7pd_SkSSjWIjIEEvIMwzG7Od7d2-5jINdvd91gW_9yK6SKE4hiBZ66PVIldc6rtxkdOlvn_2AvsYVfEwx_AEoBXE4</recordid><startdate>202010</startdate><enddate>202010</enddate><creator>Biagioni, Cristian</creator><creator>Belmonte, Donato</creator><creator>Carbone, Cristina</creator><creator>Cabella, Roberto</creator><creator>Demitri, Nicola</creator><creator>Perchiazzi, Natale</creator><creator>Kampf, Anthony R</creator><creator>Bosi, Ferdinando</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>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>U9A</scope></search><sort><creationdate>202010</creationdate><title>Isselite, Cu6(SO4)(OH)10(H2O)4·H2O, a new mineral species from eastern Liguria, Italy</title><author>Biagioni, Cristian ; Belmonte, Donato ; Carbone, Cristina ; Cabella, Roberto ; Demitri, Nicola ; Perchiazzi, Natale ; Kampf, Anthony R ; Bosi, Ferdinando</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g1710-496c302110523542603c235d7f37f39649105cf55dc6b1302a9e8627ae040dc13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>cell dimensions</topic><topic>copper minerals</topic><topic>crystal chemistry</topic><topic>crystal structure</topic><topic>Crystals</topic><topic>Europe</topic><topic>formula</topic><topic>Genoa Italy</topic><topic>Geology</topic><topic>isselite</topic><topic>Italy</topic><topic>lattice parameters</topic><topic>Liguria Italy</topic><topic>Logoscuro Mine</topic><topic>Mineralogy</topic><topic>Minerals</topic><topic>Mining</topic><topic>Monte Ramazzo Mine</topic><topic>montetrisaite</topic><topic>Museums</topic><topic>new minerals</topic><topic>nonsilicates</topic><topic>redgillite</topic><topic>Southern Europe</topic><topic>space groups</topic><topic>Spectrum analysis</topic><topic>Sprays</topic><topic>sulfates</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>Biagioni, Cristian</creatorcontrib><creatorcontrib>Belmonte, Donato</creatorcontrib><creatorcontrib>Carbone, Cristina</creatorcontrib><creatorcontrib>Cabella, Roberto</creatorcontrib><creatorcontrib>Demitri, Nicola</creatorcontrib><creatorcontrib>Perchiazzi, Natale</creatorcontrib><creatorcontrib>Kampf, Anthony R</creatorcontrib><creatorcontrib>Bosi, Ferdinando</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)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection (Proquest) (PQ_SDU_P3)</collection><collection>ProQuest Research Library</collection><collection>Research Library (Corporate)</collection><collection>Earth, Atmospheric & Aquatic Science Database</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>Biagioni, Cristian</au><au>Belmonte, Donato</au><au>Carbone, Cristina</au><au>Cabella, Roberto</au><au>Demitri, Nicola</au><au>Perchiazzi, Natale</au><au>Kampf, Anthony R</au><au>Bosi, Ferdinando</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Isselite, Cu6(SO4)(OH)10(H2O)4·H2O, a new mineral species from eastern Liguria, Italy</atitle><jtitle>Mineralogical magazine</jtitle><date>2020-10</date><risdate>2020</risdate><volume>84</volume><issue>5</issue><spage>653</spage><epage>661</epage><pages>653-661</pages><issn>0026-461X</issn><eissn>1471-8022</eissn><abstract>The new mineral isselite, Cu6(SO4)(OH)10(H2O)4·H2O, has been discovered in the Lagoscuro mine, Monte Ramazzo mining complex, Genoa, Eastern Liguria, Italy. It occurs as sprays of blue acicular crystals, up to 0.1 mm long, associated with brochantite and posnjakite. Streak is light blue and the lustre is vitreous. Isselite is brittle, with irregular fracture and good cleavage on {001} and {100}. Measured density is 3.00(2) g/cm3. Isselite is optically biaxial (-), with α = 1.599(2), β = 1.633(2) and γ = 1.647(2) (determined in white light). The measured 2V is 63.6(5)°. Dispersion is moderate, with r > v. The optical orientation is X = b, Y = c and Z = a. Isselite is pleochroic, with X = light blue, Y = blue, Z = blue; X << Z < Y. Electron microprobe analyses give (wt.%): SO3 11.45(21), MgO 0.31(7), CoO 1.07(14), NiO 9.41(90), CuO 51.29(126), ZnO 1.10(20), H2Ocalc 24.21, total 98.84. The empirical formula of isselite, based on Σ(Mg,Co,Ni,Cu,Zn) = 6 atoms per formula unit, is (Cu4.80Ni0.94Co0.11Zn0.10Mg0.06)Σ6.00(S1.06O4.19)(OH)10·5H2 O. Isselite is orthorhombic, space group Pmn21, with unit-cell parameters a = 6.8070(14), b = 5.8970(12), c = 20.653(4) Å, V = 829.0(3) Å3 and Z = 2. The crystal structure of isselite was refined from single-crystal X-ray diffraction data to R1 = 0.067 on the basis of 2964 reflections with Fo > 4σ(Fo). It shows a layered structure formed by zig-zag {001} layers of Cu-centred polyhedra. Sulfate groups occur in the interlayer along with one H2O group. Isselite is chemically related to redgillite and montetrisaite.</abstract><cop>London</cop><pub>Mineralogical Society</pub><doi>10.1180/mgm.2020.50</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | cell dimensions copper minerals crystal chemistry crystal structure Crystals Europe formula Genoa Italy Geology isselite Italy lattice parameters Liguria Italy Logoscuro Mine Mineralogy Minerals Mining Monte Ramazzo Mine montetrisaite Museums new minerals nonsilicates redgillite Southern Europe space groups Spectrum analysis Sprays sulfates unit cell X-ray diffraction X-ray diffraction data |
| title | Isselite, Cu6(SO4)(OH)10(H2O)4·H2O, a new mineral species from eastern Liguria, Italy |
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