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daubreelite

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Journal Article
Published: 01 April 1968
American Mineralogist (1968) 53 (3-4): 491–495.
...Klaus Keil Abstract Daubreelite (FeCr 2 S 4 ) was discovered by Smith (1878) in the Coahuila iron meteorite, and has since been identified in several hexahedrites and octahedrites ( e.g. Heide et al. , 1932; Perry, 1944; El Goresy, 1965, Marshall and Keil, 1965). In stone meteorites it has been...
Image
SEM BSE images of a porphyritic pyroxene chondrule  Ind-1  with sulfide-ric...
Published: 01 June 2022
Figure 2. SEM BSE images of a porphyritic pyroxene chondrule Ind-1 with sulfide-rich patches, one of which contains daubréelite, in section ICM7. ( a ) Entire chondrule (530 µm diameter) consists of clinoenstatite, interstitial albite, and sulfide patches. ( b ) High-magnification view (small
Journal Article
Published: 01 June 2022
American Mineralogist (2022) 107 (6): 1030–1033.
...Figure 2. SEM BSE images of a porphyritic pyroxene chondrule Ind-1 with sulfide-rich patches, one of which contains daubréelite, in section ICM7. ( a ) Entire chondrule (530 µm diameter) consists of clinoenstatite, interstitial albite, and sulfide patches. ( b ) High-magnification view (small...
FIGURES
Journal Article
Published: 01 February 1935
American Mineralogist (1935) 20 (2): 69–80.
...W. A. Tarr Abstract The linnaeite group of sulfides as given by various mineralogists includes several different minerals. Dana 1 includes linnaeite (siegenite), daubreelite, cubanite, and carrollite. He does not include polydymite. In the 1932 edition of Dana-Ford's Textbook of Mineralogy (pp. 430...
Journal Article
Published: 01 March 2020
American Mineralogist (2020) 105 (3): 375–381.
... and aubrites) and predicted to exist on Mercury, such as CaS (oldhamite), MgS (niningerite), and FeCr 2 S 4 (daubréelite), are stable at f O 2 below IW-3 but rapidly oxidize to sulfate and/or produce sulfurous gases under terrestrial surface conditions. XANES spectra of these compounds collected to date have...
FIGURES | View All (7)
Journal Article
Published: 01 April 1990
American Mineralogist (1990) 75 (3-4): 247–255.
...-member carrollite (CuCo 2 S 4 ) and of Fe and Cr in daubréelite (FeCr 2 S 4 ) are reported, along with corresponding data for Fe and Ni in a series of “violarites” of compositions Fe 0.25 Ni 2.75 S 4 , Fe 0.75 Ni 2.25 S 4 , and FeNi 2 S 4 . The spectra provide direct evidence that daubreelite is a normal...
Journal Article
Published: 01 May 2016
American Mineralogist (2016) 101 (5): 1217–1221.
...Junko Isa; Chi Ma; Alan E. Rubin Abstract Joegoldsteinite, a new sulfide mineral of end-member formula MnCr 2 S 4 , was discovered in the Social Circle IVA iron meteorite. It is a thiospinel, the Mn analog of daubréelite (Fe 2+ Cr 2 S 4 ), and a new member of the linnaeite group. Tiny grains...
FIGURES
Journal Article
Published: 01 November 2021
American Mineralogist (2021) 106 (11): 1828–1834.
...), with accessory schreibersite, nickelphosphide, perryite, and minor daubréelite, tetrataenite, taenite, and graphite. The chemical composition of the holotype carletonmooreite determined by wavelength-dispersive electron-microprobe analysis is (wt%) Ni 82.8 ± 0.4, Fe 4.92 ± 0.09, and Si 13.08 ± 0.08 (n = 6, total...
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Journal Article
Published: 01 November 2011
American Mineralogist (2011) 96 (11-12): 1905–1908.
... Laar 1967 ), and daubréelite (FeCr 2 S 4 ) ( Raccah et al. 1966 ). Murchisite is also observed in a second isolated olivine (Fo 99 Fa 1 ) grain from Murchison in section MCM1A, occurring in mixtures of serpentine and tochilinite with chromite and eskolaite (Cr 2 O 3 ) nearby ( Fig. 2 ). Thin...
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Image
Petrogrographic setting of kumdykolite from EH3 chondrite SAH 97072. ( a ) ...
Published: 01 May 2013
silica. kum = kumdykolite, px = pyroxene, k = kamacite, ng = niningerite, od = oldhamite, psil = porous silica, tr = troilite, zdb = zincian daubreelite.
Journal Article
Published: 01 September 2017
American Mineralogist (2017) 102 (9): 1881–1893.
... that disequilibrium formation favors pyrrhotite over troilite and also produces minority schreibersite, daubréelite, barringerite, taenite, oldhamite, and perryite at the metal-sulfide interface. TEM identification of nanophases and analysis of pyrrhotite superlattice reflections illuminate the formation pathway...
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Journal Article
Published: 01 December 2016
European Journal of Mineralogy (2016) 28 (5): 969–977.
...(PO 4 )F, chlorapatite? and whitlockite?), and schreibersite, chromite, enstatite (‘bronzite’), kosmochlor, kosmochlor–augite, olivine, albite, orthoclase, quartz, cohenite, nickelphosphide, altaite, troilite, pyrrhotite, sphalerite, daubreelite, djerfisherite, and native Cu. Czochralskiite forms...
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Journal Article
Published: 01 April 2015
Mineralogical Magazine (2015) 79 (2): 387–398.
..., nickelphosphide, altaite, pyrrhotite, sphalerite, daubreelite, djerfischerite, whitlockite and native Cu. The inclusions are rimmed by a schreibersite-cohenite halo. Moraskoite forms aggregates up to 1.5 mm in size, with individual grains 20–300 μm across. It is colourless and transparent, with a white streak...
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Journal Article
Published: 01 July 2014
American Mineralogist (2014) 99 (7): 1254–1264.
..., carrollite, cuproiridsite, cuprokalininite, cuprorhodsite, daubréelite, ferrorhodsite, fletcherite, florensovite, greigite, indite, kalininite, linnaeite, malanite, polydymite, siegenite, violarite, and xingzhongite. The known mineral species with spinel-type structure are briefly reviewed, indicating...
FIGURES
Journal Article
Published: 01 July 2000
American Mineralogist (2000) 85 (7-8): 1082–1086.
... (88), 2.307 (47), 1.938 (45), and 1.801 Å (45). Florenskyite is only the fourth phosphide to be described from nature. Its paragenesis may be unique, and may be due to melting of a mineral assemblage including Fe-Ni metal, schreibersite, daubreelite, osbornite, or heideite and subsequent...
FIGURES
Journal Article
Published: 01 June 1985
American Mineralogist (1985) 70 (5-6): 638–643.
... to caswellsilverite. Other associated phases are daubreelite, titanoan troilite, ferromagnesian alabandite, oldhamite, kamacite and perryite. In reflected light, schöllhornite is gray in air and bluish gray in oil. It has distinct reflection pleochroism: in air, brownish gray (brighter) and bluish gray (darker...
Journal Article
Published: 01 February 1982
American Mineralogist (1982) 67 (1-2): 132–136.
...Akihiko Okada; Klaus Keil Abstract Caswellsilverite, NaCrS 2 , occurs in the Norton County enstatite achondrite as anhedral grains up to 1 mm in size. It is associated with daubréelite, titanoan troilite, ferromagnesian alabandite, oldhamite, kamacite, perryite, and a dark-gray phase, also a new Na...
Journal Article
Published: 01 June 1974
American Mineralogist (1974) 59 (5-6): 465–470.
...Klaus Keil; Robin Brett Abstract Heideite, (Fe,Cr) 1+x (Ti,Fe) 2 S 4 occurs as rare anhedral grains up to 100 μ m in diameter in the Bustee enstatite achondrite. Other sulfides in Bustee are titanian troilite, ferroan alabandite, and daubreelite. Heideite (named after Professor Fritz Heide) has...
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Position of S  K -edge for reference compounds show the general relationshi...
Published: 01 March 2020
: Ni 1–x S, FeS, MnS, MgS, CaS) show a linear trend. Monosulfides with different cation charges (open circles: Ni 7 S 6 , Ni 3 S 2 , NiS 2 , Al 2 S 3 , Na 2 S) are also shown. Daubréelite (cross = FeCr 2 S 4 ) percent ionic character was calculated using a Cr-S bond. The marker size corresponds
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( A ) Sulfur and iron contents measured at Mercury's surface (yellow dots) ...
Published: 01 February 2019
daubréelite, niningerite and keilite. Therefore, the accumulation of different amounts of such a phase in Mercury's lavas is a possible explanation of Mercury's Fe paradox. Exp = experimental. D ata from W eider et al . (2015).