Pretulite, ScPO4; a new scandium mineral from the Styrian and Lower Austrian lazulite occurrences, Austria
Pretulite is a new Sc phosphate with zircon-type structure from the phyllite-micaschist hosted hydrothermal lazulite-quartz veins in the Lower Austroalpine Grobgneis complex, eastern Austria. The new species is the Sc-dominant analogue of xenotime-(Y) and occurs as an accessory mineral in all invest...
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Veröffentlicht in: | The American mineralogist 1998-06, Vol.83 (5-6), p.625-630 |
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description | Pretulite is a new Sc phosphate with zircon-type structure from the phyllite-micaschist hosted hydrothermal lazulite-quartz veins in the Lower Austroalpine Grobgneis complex, eastern Austria. The new species is the Sc-dominant analogue of xenotime-(Y) and occurs as an accessory mineral in all investigated lazulite specimens, forming anhedral to euhedral crystals up to 200 µm long with the dominant form {211}. It is associated with lazulite, fluorapatite, chlorapatite, quartz, muscovite, clinochlore, paragonite, kyanite, pyrophyllite, augelite, wardite, hydroxylherderite, goyazite, florencite-(Ce), xenotime-(Y), bearthite, rutile, pyrite, corundum, and an AlO(OH)-phase. Pretulite is translucent to transparent with an adamantine luster, colorless to pale pink, uniaxial positive with ω = 1.790 (5), ε = 1.86 (1) and shows a weak orange fluorescence at 254 nm as well as a bright blue cathodoluminescence. Mohs hardness is about 5. The empirical formula for pretulite (based on four O atoms) is (Sc0.98Y0.02)1.00)1.00O4.00. It contains variable amounts of Y with Y/(Y+Sc) = 0.5-3.2 mol% and traces of Yb, Er, and Dy. The space group is I41/amd with a = 6.589 (1) Å, c = 5.806 (1) Å, V = 252.1 (1) Å3, dcalc = 3.71 g/cm3, Z = 4. The four strongest lines in the X-ray powder pattern are d200 = 3.293 (100), d112 = 2.4636 (42), d312 = 1.6927 (45), d332 = 1.3697 (15) Å. The crystal structure was refined using 108 reflections to R(F0) = 0.018. Cell parameters and average M-O distances confirm a small amount of Y substituting Sc in the eightfold-coordinated M-position. The formation of pretulite is attributed to a moderate enrichment of Sc in lazulite-rich domains of the veins (about 180 ppm) and the inability of the accompanying minerals to incorporate larger quantities of Sc in their crystal structure. The name is after the mountain Pretul, Fischbacher Alpen, Styria, Austria. |
doi_str_mv | 10.2138/am-1998-5-622 |
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The new species is the Sc-dominant analogue of xenotime-(Y) and occurs as an accessory mineral in all investigated lazulite specimens, forming anhedral to euhedral crystals up to 200 µm long with the dominant form {211}. It is associated with lazulite, fluorapatite, chlorapatite, quartz, muscovite, clinochlore, paragonite, kyanite, pyrophyllite, augelite, wardite, hydroxylherderite, goyazite, florencite-(Ce), xenotime-(Y), bearthite, rutile, pyrite, corundum, and an AlO(OH)-phase. Pretulite is translucent to transparent with an adamantine luster, colorless to pale pink, uniaxial positive with ω = 1.790 (5), ε = 1.86 (1) and shows a weak orange fluorescence at 254 nm as well as a bright blue cathodoluminescence. Mohs hardness is about 5. The empirical formula for pretulite (based on four O atoms) is (Sc0.98Y0.02)1.00)1.00O4.00. It contains variable amounts of Y with Y/(Y+Sc) = 0.5-3.2 mol% and traces of Yb, Er, and Dy. The space group is I41/amd with a = 6.589 (1) Å, c = 5.806 (1) Å, V = 252.1 (1) Å3, dcalc = 3.71 g/cm3, Z = 4. The four strongest lines in the X-ray powder pattern are d200 = 3.293 (100), d112 = 2.4636 (42), d312 = 1.6927 (45), d332 = 1.3697 (15) Å. The crystal structure was refined using 108 reflections to R(F0) = 0.018. Cell parameters and average M-O distances confirm a small amount of Y substituting Sc in the eightfold-coordinated M-position. The formation of pretulite is attributed to a moderate enrichment of Sc in lazulite-rich domains of the veins (about 180 ppm) and the inability of the accompanying minerals to incorporate larger quantities of Sc in their crystal structure. The name is after the mountain Pretul, Fischbacher Alpen, Styria, Austria.</description><identifier>ISSN: 0003-004X</identifier><identifier>EISSN: 1945-3027</identifier><identifier>DOI: 10.2138/am-1998-5-622</identifier><identifier>CODEN: AMMIAY</identifier><language>eng</language><publisher>Washington: Mineralogical Society of America</publisher><subject>accessory minerals ; Austria ; Central Europe ; crystal structure ; eastern Austria ; Europe ; formula ; Grobgneis Complex ; lattice parameters ; lazulite ; Lower Austria ; metamorphic rocks ; Mineralogy ; Minerals ; natural analogs ; new minerals ; nonsilicates ; phosphates ; phyllites ; physical properties ; pretulite ; Scandium ; SEM data ; Styria Austria ; xenotime</subject><ispartof>The American mineralogist, 1998-06, Vol.83 (5-6), p.625-630</ispartof><rights>GeoRef, Copyright 2020, American Geosciences Institute.</rights><rights>Copyright Mineralogical Society of America May 1998</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>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Bernhard, Franz</creatorcontrib><creatorcontrib>Walter, Franz</creatorcontrib><creatorcontrib>Ettinger, Karl</creatorcontrib><creatorcontrib>Taucher, Josef</creatorcontrib><creatorcontrib>Mereiter, Kurt</creatorcontrib><title>Pretulite, ScPO4; a new scandium mineral from the Styrian and Lower Austrian lazulite occurrences, Austria</title><title>The American mineralogist</title><description>Pretulite is a new Sc phosphate with zircon-type structure from the phyllite-micaschist hosted hydrothermal lazulite-quartz veins in the Lower Austroalpine Grobgneis complex, eastern Austria. The new species is the Sc-dominant analogue of xenotime-(Y) and occurs as an accessory mineral in all investigated lazulite specimens, forming anhedral to euhedral crystals up to 200 µm long with the dominant form {211}. It is associated with lazulite, fluorapatite, chlorapatite, quartz, muscovite, clinochlore, paragonite, kyanite, pyrophyllite, augelite, wardite, hydroxylherderite, goyazite, florencite-(Ce), xenotime-(Y), bearthite, rutile, pyrite, corundum, and an AlO(OH)-phase. Pretulite is translucent to transparent with an adamantine luster, colorless to pale pink, uniaxial positive with ω = 1.790 (5), ε = 1.86 (1) and shows a weak orange fluorescence at 254 nm as well as a bright blue cathodoluminescence. Mohs hardness is about 5. The empirical formula for pretulite (based on four O atoms) is (Sc0.98Y0.02)1.00)1.00O4.00. It contains variable amounts of Y with Y/(Y+Sc) = 0.5-3.2 mol% and traces of Yb, Er, and Dy. The space group is I41/amd with a = 6.589 (1) Å, c = 5.806 (1) Å, V = 252.1 (1) Å3, dcalc = 3.71 g/cm3, Z = 4. The four strongest lines in the X-ray powder pattern are d200 = 3.293 (100), d112 = 2.4636 (42), d312 = 1.6927 (45), d332 = 1.3697 (15) Å. The crystal structure was refined using 108 reflections to R(F0) = 0.018. Cell parameters and average M-O distances confirm a small amount of Y substituting Sc in the eightfold-coordinated M-position. The formation of pretulite is attributed to a moderate enrichment of Sc in lazulite-rich domains of the veins (about 180 ppm) and the inability of the accompanying minerals to incorporate larger quantities of Sc in their crystal structure. The name is after the mountain Pretul, Fischbacher Alpen, Styria, Austria.</description><subject>accessory minerals</subject><subject>Austria</subject><subject>Central Europe</subject><subject>crystal structure</subject><subject>eastern Austria</subject><subject>Europe</subject><subject>formula</subject><subject>Grobgneis Complex</subject><subject>lattice parameters</subject><subject>lazulite</subject><subject>Lower Austria</subject><subject>metamorphic rocks</subject><subject>Mineralogy</subject><subject>Minerals</subject><subject>natural analogs</subject><subject>new minerals</subject><subject>nonsilicates</subject><subject>phosphates</subject><subject>phyllites</subject><subject>physical properties</subject><subject>pretulite</subject><subject>Scandium</subject><subject>SEM data</subject><subject>Styria Austria</subject><subject>xenotime</subject><issn>0003-004X</issn><issn>1945-3027</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNpFkElLA0EUhBtRMEaP3huvpvX1OjN4CsENAglEwVvo6byOE2bR7hkG_fVmUTwVvPqoVxQhlxxuBJfpra0Yz7KUaWaEOCIDninNJIjkmAwAQDIA9XZKzmLcAAghdTYgm3nAtiuLFkd04eYzdUctrbGn0dl6VXQVrYoagy2pD01F23eki_YrFLamW59Omx4DHXex3Z9K-73Poo1zXQhYO4yjP_ucnHhbRrz41SF5fbh_mTyx6ezxeTKesrUUvGVc5hmglBYyBytItMJEC28S7XPvU1RacyMMAs-d194JJVBIZXIJqRDo5ZBcHXI_QvPZYWyXm6YL9fblUkiAVPHEbKHrA7TGJrpi17RvQrn6Z3dTLkEZk4H8AZeZZ_I</recordid><startdate>19980601</startdate><enddate>19980601</enddate><creator>Bernhard, Franz</creator><creator>Walter, Franz</creator><creator>Ettinger, Karl</creator><creator>Taucher, Josef</creator><creator>Mereiter, Kurt</creator><general>Mineralogical Society of America</general><general>Walter de Gruyter GmbH</general><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>19980601</creationdate><title>Pretulite, ScPO4; a new scandium mineral from the Styrian and Lower Austrian lazulite occurrences, Austria</title><author>Bernhard, Franz ; Walter, Franz ; Ettinger, Karl ; Taucher, Josef ; Mereiter, Kurt</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g321t-13b90e33a09c0d0754e752f675fbff8e4551626e01bcf5fc242e2346b30822ef3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>accessory minerals</topic><topic>Austria</topic><topic>Central Europe</topic><topic>crystal structure</topic><topic>eastern Austria</topic><topic>Europe</topic><topic>formula</topic><topic>Grobgneis Complex</topic><topic>lattice parameters</topic><topic>lazulite</topic><topic>Lower Austria</topic><topic>metamorphic rocks</topic><topic>Mineralogy</topic><topic>Minerals</topic><topic>natural analogs</topic><topic>new minerals</topic><topic>nonsilicates</topic><topic>phosphates</topic><topic>phyllites</topic><topic>physical properties</topic><topic>pretulite</topic><topic>Scandium</topic><topic>SEM data</topic><topic>Styria Austria</topic><topic>xenotime</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bernhard, Franz</creatorcontrib><creatorcontrib>Walter, Franz</creatorcontrib><creatorcontrib>Ettinger, Karl</creatorcontrib><creatorcontrib>Taucher, Josef</creatorcontrib><creatorcontrib>Mereiter, Kurt</creatorcontrib><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>The American mineralogist</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bernhard, Franz</au><au>Walter, Franz</au><au>Ettinger, Karl</au><au>Taucher, Josef</au><au>Mereiter, Kurt</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pretulite, ScPO4; a new scandium mineral from the Styrian and Lower Austrian lazulite occurrences, Austria</atitle><jtitle>The American mineralogist</jtitle><date>1998-06-01</date><risdate>1998</risdate><volume>83</volume><issue>5-6</issue><spage>625</spage><epage>630</epage><pages>625-630</pages><issn>0003-004X</issn><eissn>1945-3027</eissn><coden>AMMIAY</coden><abstract>Pretulite is a new Sc phosphate with zircon-type structure from the phyllite-micaschist hosted hydrothermal lazulite-quartz veins in the Lower Austroalpine Grobgneis complex, eastern Austria. The new species is the Sc-dominant analogue of xenotime-(Y) and occurs as an accessory mineral in all investigated lazulite specimens, forming anhedral to euhedral crystals up to 200 µm long with the dominant form {211}. It is associated with lazulite, fluorapatite, chlorapatite, quartz, muscovite, clinochlore, paragonite, kyanite, pyrophyllite, augelite, wardite, hydroxylherderite, goyazite, florencite-(Ce), xenotime-(Y), bearthite, rutile, pyrite, corundum, and an AlO(OH)-phase. Pretulite is translucent to transparent with an adamantine luster, colorless to pale pink, uniaxial positive with ω = 1.790 (5), ε = 1.86 (1) and shows a weak orange fluorescence at 254 nm as well as a bright blue cathodoluminescence. Mohs hardness is about 5. The empirical formula for pretulite (based on four O atoms) is (Sc0.98Y0.02)1.00)1.00O4.00. It contains variable amounts of Y with Y/(Y+Sc) = 0.5-3.2 mol% and traces of Yb, Er, and Dy. The space group is I41/amd with a = 6.589 (1) Å, c = 5.806 (1) Å, V = 252.1 (1) Å3, dcalc = 3.71 g/cm3, Z = 4. The four strongest lines in the X-ray powder pattern are d200 = 3.293 (100), d112 = 2.4636 (42), d312 = 1.6927 (45), d332 = 1.3697 (15) Å. The crystal structure was refined using 108 reflections to R(F0) = 0.018. Cell parameters and average M-O distances confirm a small amount of Y substituting Sc in the eightfold-coordinated M-position. The formation of pretulite is attributed to a moderate enrichment of Sc in lazulite-rich domains of the veins (about 180 ppm) and the inability of the accompanying minerals to incorporate larger quantities of Sc in their crystal structure. The name is after the mountain Pretul, Fischbacher Alpen, Styria, Austria.</abstract><cop>Washington</cop><pub>Mineralogical Society of America</pub><doi>10.2138/am-1998-5-622</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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subjects | accessory minerals Austria Central Europe crystal structure eastern Austria Europe formula Grobgneis Complex lattice parameters lazulite Lower Austria metamorphic rocks Mineralogy Minerals natural analogs new minerals nonsilicates phosphates phyllites physical properties pretulite Scandium SEM data Styria Austria xenotime |
title | Pretulite, ScPO4; a new scandium mineral from the Styrian and Lower Austrian lazulite occurrences, Austria |
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