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goldschmidtite

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Journal Article
Published: 01 September 2019
American Mineralogist (2019) 104 (9): 1345–1350.
...Nicole A. Meyer; Michelle D. Wenz; James P.S. Walsh; Steven D. Jacobsen; Andrew J. Locock; Jeffrey W. Harris Abstract Goldschmidtite is a new perovskite-group mineral (IMA No. 2018-034) with the ideal formula (K,REE,Sr)(Nb,Cr)O 3 . A single grain of goldschmidtite with a maximum dimension of ∼100...
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Broken and rounded dodecahedral diamond from Koffiefontein that hosted gold...
Published: 01 September 2019
Figure 1. Broken and rounded dodecahedral diamond from Koffiefontein that hosted goldschmidtite (before breakage). Goldschmidtite is seen in green and radiation damage of the diamond can be seen in the brown regions. (Color online.)
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( a ) Uncorrected Raman spectrum of <span class="search-highlight">goldschmidtite</span> (black) using a 458.5 nm...
Published: 01 September 2019
Figure 6. ( a ) Uncorrected Raman spectrum of goldschmidtite (black) using a 458.5 nm excitation laser, compared with natural tausonite (red curve) and perovskite (blue curve, RRUFF sample R050456). Spectra are offset for clarity. Raman features in tausonite are attributed to second-order Raman
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Backscattered electron image of <span class="search-highlight">goldschmidtite</span>. The lamellar structure is p...
Published: 01 September 2019
Figure 3. Backscattered electron image of goldschmidtite. The lamellar structure is probably a result of polishing.
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Two orientations of the crystal of <span class="search-highlight">goldschmidtite</span> adhered to a glass fiber....
Published: 01 September 2019
Figure 2. Two orientations of the crystal of goldschmidtite adhered to a glass fiber. Crystal shape has been affected by polishing. Background noise due to the digital-image stacking has been removed.
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Clinographic view of the structure of <span class="search-highlight">goldschmidtite</span>: Nb atoms are orange a...
Published: 01 September 2019
Figure 4. Clinographic view of the structure of goldschmidtite: Nb atoms are orange and in sixfold coordination, K is pale blue and in 12-fold coordination, O atoms are red, and the unit cell is shown in black. (Color online.)
Journal Article
Published: 01 December 2021
American Mineralogist (2021) 106 (12): 2028–2030.
... with diamonds, dumps, and fumaroles: crowningshieldite, goldschmidtite, breyite, cardite, grimmite, hrabákite, freitalite, dioskouriite, dobrovolskyite, ferroefremovite, and vasilseverginite. * All minerals have been approved by the IMA CNMMC. For a complete listing of all IMA-validated unnamed minerals...
Journal Article
Published: 01 August 2022
American Mineralogist (2022) 107 (8): 1635–1642.
... ; Anzolini et al. 2016 ; Nestola et al. 2018 ), and also has led to the new mineral species: jeffbenite (Mg 3 Al 2 Si 3 O 12 , previously known as TAPP, Nestola et al. 2016 ), ice-VII (H 2 O, Tschauner et al. 2018 ), goldschmidtite [(K,REE,Sr)(Nb,Cr)O 3 , Meyer et al. 2019 ], and breyite (CaSiO 3...
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Journal Article
Published: 03 October 2022
American Mineralogist (2022) 107 (10): 1936–1945.
... ( Guennou et al. 2010 ) and goldschmidtite, (K, REE ,Sr)(Nb,Cr) O 3 , from an inclusion in diamond from Koffiefontein, South Africa (RRUFF R190009, Meyer et al. 2019 ). The absence of bands in the OH-stretching region of the cubic perovskite spectrum ( Fig. 7b ) indicates the lack of hydroxyl water...
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Raman spectrum of cubic perovskite, in comparison with the reference spectr...
Published: 03 October 2022
Figure 7. Raman spectrum of cubic perovskite, in comparison with the reference spectra of natural orthorhombic perovskite (RRUFF R050456, Lafuente et al. 2015 ), pure synthetic CaTiO 3 ( Guennou et al. 2010 ), and goldschmidtite, (K, REE ,Sr)(Nb,Cr)O 3 (RRUFF R190009, Meyer et al. 2019
Journal Article
Published: 07 August 2018
Mineralogical Magazine (2018) 82 (4): 1015–1021.
... Goldschmidtite KNbO 3 As inclusion in a diamond from the Koffiefontein kimberlite pipe, South Africa (29°24.9′S, 24°59.5′E) Nicole A. Meyer*, Michelle D. Wenz, James P.S. Walsh, Steven D. Jacobsen, Andrew J. Locock and Jeffrey W. Harris *E-mail: [email protected] The K analogue...
Journal Article
Published: 01 July 2018
European Journal of Mineralogy (2018) 30 (4): 877–882.
... was wrong. The correct one is included in this Newsletter. Goldschmidtite KNbO 3 As inclusion in a diamond from the Koffiefontein kimberlite pipe, South Africa (29°24.9′S, 24°59.5′E) Nicole A. Meyer*, Michelle D. Wenz, James P.S. Walsh, Steven D. Jacobsen, Andrew J. Locock and Jeffrey W. Harris...
Journal Article
Published: 01 July 2022
Reviews in Mineralogy and Geochemistry (2022) 88 (1): 567–636.
... and chromite inclusions consistent with a peridotitic paragenesis but further work is needed to verify the syngenetic versus epigenetic nature of this perovskite inclusion ( Hamilton et al. 2003 ). However, the perovskite-structured phase goldschmidtite (KNbO 3 ) has been reported as an unaltered inclusion...
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Journal Article
Published: 01 July 2022
Reviews in Mineralogy and Geochemistry (2022) 88 (1): 257–305.
... , Harris JW ( 2019 ) Goldschmidtite, (K,REE,Sr)(Nb,Cr)O 3 : A new perovskite supergroup mineral found in diamond from Koffiefontein, South Africa . Am Mineral 104 : 1345 – 1350 Milani S , Nestola F , Angel RJ , Nimis P , Harris J ( 2016 ) Crystallographic...
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Journal Article
Published: 01 July 2022
Reviews in Mineralogy and Geochemistry (2022) 88 (1): 307–391.
.... Rare : Corundum, Ilmenite, Magnetite, Fe–Mg-chromite, Phlogopite, K-feldspar, Titanite, Staurolite, Zircon, Moissanite, Calcite, Dolomite. Websteritic Common : Almandine–Pyrope, Diopside–Augite, Enstatite. Occasional : Coesite * , Olivine. Rare : Phlogopite, Goldschmidtite Origin...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2019
DOI: 10.5382/SP.22.07
EISBN: 978-1-629493-10-7
...-polymetallic, (3) quartz-K-feldspar-sericite, (4) carbonate; ore-forming fluid temperature120°–250°C Au minerals native gold, electrum, calaverite, goldschmidtite, petzite; Ag minerals native silver, argentite; pyrite, sphalerite, greigite, galena, chalcopyrite; quartz, adularia, minor sericite, fluorite...
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