About: Kitagohaite, Pt7Cu, a new mineral from the Lubero region, North Kivu, Democratic Republic of the Congo

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About: Kitagohaite, Pt7Cu, a new mineral from the Lubero region, North Kivu, Democratic Republic of the Congo Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Kitagohaite, ideally Pt7Cu, is a new mineral from the Lubero region of North Kivu, Democratic Republic of the Congo. The mineral occurs as alluvial grains that were recovered together with other Pt-rich intermetallic compounds and Au. Kitagohaite is opaque, greyish white and malleable and has a metallic lustre and a grey streak. In reflected light, kitagohaite is white and isotropic. The crystal structure of kitagohaite is cubic, space group Fm3m, of the Ca7Ge type, with a = 7.7891(3) A , V = 472.57(5) A 3 and Z = 4. The strongest diffraction lines [d in A (I)(hkl)] are: 2.246 (100)(222), 1.948(8)(004), 1.377 (77)(044), 1.174(27)(622), 1.123 (31)(444) and 0.893 (13)(662). The Vickers hardness is 217 kg mm 2 (VHN100), which is equivalent to a Mohs hardness of 3 and the calculated density is 19.958(2) g cm 3. Electron-microprobe analyses gave a mean value (n = 13) of 95.49 wt.% Pt and 4.78 wt.%Cu, which corresponds to Pt6.93Cu1.07 on the basis of eight atoms. The new mineral is named for the Kitagoha river, in the Lubero region. Kitagohaite, ideally Pt7Cu, is a new mineral from the Lubero region of North Kivu, Democratic Republic of the Congo. The mineral occurs as alluvial grains that were recovered together with other Pt-rich intermetallic compounds and Au. Kitagohaite is opaque, greyish white and malleable and has a metallic lustre and a grey streak. In reflected light, kitagohaite is white and isotropic. The crystal structure of kitagohaite is cubic, space group Fm3m, of the Ca7Ge type, with a = 7.7891(3) A , V = 472.57(5) A 3 and Z = 4. The strongest diffraction lines [d in A (I)(hkl)] are: 2.246 (100)(222), 1.948(8)(004), 1.377 (77)(044), 1.174(27)(622), 1.123 (31)(444) and 0.893 (13)(662). The Vickers hardness is 217 kg mm 2 (VHN100), which is equivalent to a Mohs hardness of 3 and the calculated density is 19.958(2) g cm 3. Electron-microprobe analyses gave a mean value (n = 13) of 95.49 wt.% Pt and 4.78 wt.%Cu, which corresponds to Pt6.93Cu1.07 on the basis of eight atoms. The new mineral is named for the Kitagoha river, in the Lubero region. (en)
Title	Kitagohaite, Pt7Cu, a new mineral from the Lubero region, North Kivu, Democratic Republic of the Congo Kitagohaite, Pt7Cu, a new mineral from the Lubero region, North Kivu, Democratic Republic of the Congo (en)
skos:prefLabel	Kitagohaite, Pt7Cu, a new mineral from the Lubero region, North Kivu, Democratic Republic of the Congo Kitagohaite, Pt7Cu, a new mineral from the Lubero region, North Kivu, Democratic Republic of the Congo (en)
skos:notation	RIV/67985831:_____/14:00432914!RIV15-AV0-67985831
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GPP210/11/P744)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kallistová, Anna Skála, Roman
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Geologický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	24269
http://linked.open...ai/riv/idVysledku	RIV/67985831:_____/14:00432914
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	kitagohaite; Pt7Cu; Lubero; North Kivu; Democratic Republic of the Congo (en)
http://linked.open.../riv/klicoveSlovo	Lubero North Kivu Pt7Cu kitagohaite Democratic Republic of the Congo
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B1B812FA2372]
http://linked.open...i/riv/nazevZdroje	Mineralogical Magazine
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Selected platinum-group minerals and their experimental approach
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	78
http://linked.open...iv/tvurceVysledku	Skála, Roman Lehmann, B. Vymazalová, A. Kallistová, Anna Cabral, A. R. Jedwab, J. Sidorinová, T.
http://linked.open...ain/vavai/riv/wos	000344420400019
issn	0026-461X
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1180/minmag.2014.078.3.19

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