Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH)
Schizolite, originating from the type locality, Tutop Agtakôrfia, in the Ilímaussaq alkaline complex, Julianehåb district, South Greenland, was described initially by Winther (1901) with additional data being supplied by Bøggild (1903). Recently, a proposal for the new mineral ‘marshallsussmanite’ w...
Published in: | Mineralogical Magazine |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/10852/75537 http://urn.nb.no/URN:NBN:no-78656 https://doi.org/10.1180/mgm.2019.21 |
id |
ftoslouniv:oai:www.duo.uio.no:10852/75537 |
---|---|
record_format |
openpolar |
spelling |
ftoslouniv:oai:www.duo.uio.no:10852/75537 2023-05-15T16:29:45+02:00 Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) Grice, Joel D Lussier, Aaron J Friis, Henrik Rowe, Ralph Poirier, Glenn Fihl, Zina 2019-09-18T12:00:48Z http://hdl.handle.net/10852/75537 http://urn.nb.no/URN:NBN:no-78656 https://doi.org/10.1180/mgm.2019.21 EN eng http://urn.nb.no/URN:NBN:no-78656 Grice, Joel D Lussier, Aaron J Friis, Henrik Rowe, Ralph Poirier, Glenn Fihl, Zina . Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH). Mineralogical magazine. 2019, 83(3), 473-478 http://hdl.handle.net/10852/75537 1726156 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Mineralogical magazine&rft.volume=83&rft.spage=473&rft.date=2019 Mineralogical magazine 83 03 473 478 https://doi.org/10.1180/mgm.2019.21 URN:NBN:no-78656 Fulltext https://www.duo.uio.no/bitstream/handle/10852/75537/1/Grice%2Bet%2Bal%2B2019%2BPreProof.pdf 0026-461X Journal article Tidsskriftartikkel Peer reviewed AcceptedVersion 2019 ftoslouniv https://doi.org/10.1180/mgm.2019.21 2020-06-21T08:54:10Z Schizolite, originating from the type locality, Tutop Agtakôrfia, in the Ilímaussaq alkaline complex, Julianehåb district, South Greenland, was described initially by Winther (1901) with additional data being supplied by Bøggild (1903). Recently, a proposal for the new mineral ‘marshallsussmanite’ was submitted to, and approved by, the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification (IMA2013-067) by Origlieri et al. (2013). Results from the detailed examination of two schizolite cotype samples presented here, using single-crystal and powder X-ray diffraction, and optical properties, confirms it to be equivalent to ‘marshallsussmanite’. Historical precedence sets a priority for discrediting the name ‘marshallsussmanite’ in favour of the original, more-than-a century-old name, schizolite. The two schizolite samples investigated vary slightly in physical and chemical properties but are consistent overall. The prismatic crystals are pale red or pink to brownish. Schizolite is brittle with a splintery aspect. It is biaxial (+), with average optical parameters: α = 1.626 ± 0.003, β = 1.630 ± 0.002, γ = 1.661 ± 0.002, 2Vmeas = 71(4)° and 2Vcalc = 40°; there is no pleochroism. Electron microprobe analysis shows both samples have nearly identical compositions (differences <0.4 wt.% oxide), with the mean values of: SiO2 52.6(4); Al2 0.005(1); FeO 2.54(2); MnO 13.86(9); CaO 17.9(4); Na2O 8.9(1); and H2O 2.59(2) wt.% oxide; this corresponds to a mean formula of: Na1.00(2)(OH). Final least-squares structure refinements for both samples converged at R values ≤2.0%; H atoms were located in all refinements. Article in Journal/Newspaper Greenland Julianehåb Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Greenland Mineralogical Magazine 83 03 473 478 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Schizolite, originating from the type locality, Tutop Agtakôrfia, in the Ilímaussaq alkaline complex, Julianehåb district, South Greenland, was described initially by Winther (1901) with additional data being supplied by Bøggild (1903). Recently, a proposal for the new mineral ‘marshallsussmanite’ was submitted to, and approved by, the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification (IMA2013-067) by Origlieri et al. (2013). Results from the detailed examination of two schizolite cotype samples presented here, using single-crystal and powder X-ray diffraction, and optical properties, confirms it to be equivalent to ‘marshallsussmanite’. Historical precedence sets a priority for discrediting the name ‘marshallsussmanite’ in favour of the original, more-than-a century-old name, schizolite. The two schizolite samples investigated vary slightly in physical and chemical properties but are consistent overall. The prismatic crystals are pale red or pink to brownish. Schizolite is brittle with a splintery aspect. It is biaxial (+), with average optical parameters: α = 1.626 ± 0.003, β = 1.630 ± 0.002, γ = 1.661 ± 0.002, 2Vmeas = 71(4)° and 2Vcalc = 40°; there is no pleochroism. Electron microprobe analysis shows both samples have nearly identical compositions (differences <0.4 wt.% oxide), with the mean values of: SiO2 52.6(4); Al2 0.005(1); FeO 2.54(2); MnO 13.86(9); CaO 17.9(4); Na2O 8.9(1); and H2O 2.59(2) wt.% oxide; this corresponds to a mean formula of: Na1.00(2)(OH). Final least-squares structure refinements for both samples converged at R values ≤2.0%; H atoms were located in all refinements. |
format |
Article in Journal/Newspaper |
author |
Grice, Joel D Lussier, Aaron J Friis, Henrik Rowe, Ralph Poirier, Glenn Fihl, Zina |
spellingShingle |
Grice, Joel D Lussier, Aaron J Friis, Henrik Rowe, Ralph Poirier, Glenn Fihl, Zina Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) |
author_facet |
Grice, Joel D Lussier, Aaron J Friis, Henrik Rowe, Ralph Poirier, Glenn Fihl, Zina |
author_sort |
Grice, Joel D |
title |
Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) |
title_short |
Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) |
title_full |
Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) |
title_fullStr |
Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) |
title_full_unstemmed |
Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH) |
title_sort |
discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, nacamnsi3o8(oh) |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/75537 http://urn.nb.no/URN:NBN:no-78656 https://doi.org/10.1180/mgm.2019.21 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Julianehåb |
genre_facet |
Greenland Julianehåb |
op_source |
0026-461X |
op_relation |
http://urn.nb.no/URN:NBN:no-78656 Grice, Joel D Lussier, Aaron J Friis, Henrik Rowe, Ralph Poirier, Glenn Fihl, Zina . Discreditation of the pyroxenoid mineral name ‘marshallsussmanite’ with a reinstatement of the name schizolite, NaCaMnSi3O8(OH). Mineralogical magazine. 2019, 83(3), 473-478 http://hdl.handle.net/10852/75537 1726156 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Mineralogical magazine&rft.volume=83&rft.spage=473&rft.date=2019 Mineralogical magazine 83 03 473 478 https://doi.org/10.1180/mgm.2019.21 URN:NBN:no-78656 Fulltext https://www.duo.uio.no/bitstream/handle/10852/75537/1/Grice%2Bet%2Bal%2B2019%2BPreProof.pdf |
op_doi |
https://doi.org/10.1180/mgm.2019.21 |
container_title |
Mineralogical Magazine |
container_volume |
83 |
container_issue |
03 |
container_start_page |
473 |
op_container_end_page |
478 |
_version_ |
1766019465404743680 |