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grossmanite

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Journal Article

Grossmanite, CaTi 3+ AlSiO 6 , a new pyroxene from the Allende meteorite

Chi Ma, George R. Rossman
Published: 01 October 2009
American Mineralogist (2009) 94 (10): 1491–1494.
DOI: https://doi.org/10.2138/am.2009.3310
...Chi Ma; George R. Rossman Abstract Grossmanite, Ca(Ti 3+ ,Mg,Ti 4+ )AlSiO 6 with an end-member formula CaTi 3+ AlSiO 6 , is a new member of the Ca clinopyroxene group, where the trivalent cations are dominant in the M1 site with Ti 3+ being the dominant trivalent cation. It occurs as micrometer...
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Journal Article

Rubinite, Ca 3 Ti 3+ 2 Si 3 O 12 , a new mineral in CV3 carbonaceous chondrites and a refractory garnet from the solar nebula

Chi Ma, Takashi Yoshizaki, Alexander N. Krot, John R. Beckett, Tomoki Nakamura, Kazuhide Nagashima, Jun Muto, Marina A. Ivanova, Alexander A. Ulyanov
Published: 27 June 2024
American Mineralogist (2024)
DOI: https://doi.org/10.2138/am-2024-9435
..., grossmanite, and diopside. In Efremovka, rubinite occurs within gehlenitic melilite with perovskite, spinel, and grossmanite in three CTA CAIs E101, E105 , and 40E-1 (in a compound CAI). Rubinite is present in spinel-poor regions in all four of the Efremovka and Allende CAIs but it is in contact with spinel...
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( a ) Back-scatter electron image of the <span class="search-highlight">grossmanite</span>-containing refractory ...

( a ) Back-scatter electron image of the grossmanite-containing refractory ...

Published: 01 October 2009
F igure 1. ( a ) Back-scatter electron image of the grossmanite-containing refractory inclusion in an Allende section (USNM 7562); ( b ) enlarged BSE image showing grossmanite with perovskite and spinel in a melilite host. The cross marks where the EBSD pattern (shown in Fig. 3 ) was collected.
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BSE image showing <span class="search-highlight">grossmanite</span> (grs) and perovskite (pv) in spinel (sp) in o...

BSE image showing grossmanite (grs) and perovskite (pv) in spinel (sp) in o...

Published: 01 November 2024
Figure 7. BSE image showing grossmanite (grs) and perovskite (pv) in spinel (sp) in one louisfuchsite region. (Color online.)
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Optical absorption spectra of a 52 μm thick Ti-rich diopside in TS32 (this ...

Optical absorption spectra of a 52 μm thick Ti-rich diopside in TS32 (this ...

Published: 01 October 2009
F igure 4. Optical absorption spectra of a 52 μm thick Ti-rich diopside in TS32 (this study), grossmanite in USNM3848 of unspecified thickness ( Dowty and Clark 1973 ), and a 30 μm thick synthetic NaTi 3+ Si 2 O 6 pyroxene (GRR216). The Ti-rich diopside and grossmanite are polarized in two
Journal Article

Louisfuchsite, Ca 2 (Mg 4 Ti 2 )(Al 4 Si 2 )O 20 , a new rhönite-type mineral from the NWA 4964 CK meteorite: A refractory phase from the solar nebula

Chi Ma, Alexander N. Krot, Kazuhide Nagashima, Tasha Dunn
Published: 01 November 2024
American Mineralogist (2024) 109 (11): 2006–2012.
DOI: https://doi.org/10.2138/am-2023-9283
...Figure 7. BSE image showing grossmanite (grs) and perovskite (pv) in spinel (sp) in one louisfuchsite region. (Color online.) ...
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( a ) EBSD pattern of the labeled <span class="search-highlight">grossmanite</span> crystal (marked with a cross)...

( a ) EBSD pattern of the labeled grossmanite crystal (marked with a cross)...

Published: 01 October 2009
F igure 3. ( a ) EBSD pattern of the labeled grossmanite crystal (marked with a cross) in Figure 1b ; ( b ) the pattern indexed with the C 2 /c pyroxene structure.
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BSE image showing <span class="search-highlight">grossmanite</span> with spinel, perovskite, and grossite in meli...

BSE image showing grossmanite with spinel, perovskite, and grossite in meli...

Published: 01 October 2009
F igure 2. BSE image showing grossmanite with spinel, perovskite, and grossite in melilite near the rim of a type B1 CAI in USNM 7555.
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Aluminum-magnesium evolutionary diagram of the CTA CAI from NWA 4964 (CK3.8...

Aluminum-magnesium evolutionary diagram of the CTA CAI from NWA 4964 (CK3.8...

Published: 01 November 2024
Figure 5. Aluminum-magnesium evolutionary diagram of the CTA CAI from NWA 4964 (CK3.8). Spinel, hibonite, and grossmanite define an internal isochron with ( 26 Al/ 27 Al) 0 = (5.09 ± 0.58) × 10 −5 ; melilite shows resolvable excess of 26 Mg, but has very high 27 Al/ 24 Mg ratio and does
Journal Article

Micro-Inclusions in Corundum from Puesto La Peña Complex Ouachitites, Mendoza, Argentina: A Window to the Mantle

Eduardo O. Zappettini, João O.S. Santos
Published: 18 January 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (1): 43–60.
DOI: https://doi.org/10.3749/2300010
... consisting of ZrTiO 3 , (Al,Ti,Zr) oxide, and (Mn,REE) oxide. An unnamed Ti 2 (Mn,Fe) 4 Si 5 phase was also recognized. Silicates include wodegongjieite and grossmanite. All minerals are enriched in rare earth elements. The formation of these mineral inclusions under extreme P - T conditions has been dated...
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(a) Ouachitite dike outcrop. (b–h) Images of corundum and associated inclus...

(a) Ouachitite dike outcrop. (b–h) Images of corundum and associated inclus...

Published: 18 January 2024
, carmeltazite, and UM Ti 2 (Mn,Fe) 4 Si 5 inclusions; (h) grossmanite, UM Ti 2 (Mn,Fe) 4 Si 5 , (Mn,REE) oxide, and (Al,Ti,Zr)O inclusions.
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( a ) BSE image showing a second occurrence of majindeite in ACM-2 (Calte...

( a ) BSE image showing a second occurrence of majindeite in ACM-2 (Calte...

Published: 01 May 2016
vein composed of grossular plus a highly aluminous phase (corundum?) intersects the spinel on one side and there are also some small blebs of grossmanite (boundary clinopyroxenes in the parlance of Paque et al. 2009 ).
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( a ) Molar ternary diagram of three cation groups in the M1 site from the ...

( a ) Molar ternary diagram of three cation groups in the M1 site from the ...

Published: 01 October 2009
are dominant in the M1 site. Square = grossmanite (USNM 7562, 7555, 7554); circle = davisite (USNM 7555); triangle = kushiroite (USNM 7554; ALH1); diamond = Ti-rich diopside (USNM 7554, TS32).
Journal Article

Hibonite-(Fe), (Fe,Mg)Al 12 O 19 , a new alteration mineral from the Allende meteorite

Chi Ma
Published: 01 January 2010
American Mineralogist (2010) 95 (1): 188–191.
DOI: https://doi.org/10.2138/am.2010.3365
...,Ru,Fe) ( Ma et al. 2009a ), monipite (MoNiP) ( Ma et al. 2009b ), tistarite (Ti 2 O 3 ) ( Ma and Rossman 2009a ), davisite (CaScAlSiO 6 ) ( Ma and Rossman 2009b ), and grossmanite (CaTi 3+ AlSiO 6 ) ( Ma and Rossman 2009c ). Each new phase adds a new voice toward understanding the processes...
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Discovery of dmisteinbergite (hexagonal CaAl 2 Si 2 O 8 ) in the Allende meteorite: A new member of refractory silicates formed in the solar nebula

Chi Ma, Alexander N. Krot, Martin Bizzarro
Published: 01 July 2013
American Mineralogist (2013) 98 (7): 1368–1371.
DOI: https://doi.org/10.2138/am.2013.4496
... of refractory silicates, joining other nine refractory silicates melilite, Al,Ti-diopside, anorthite, rhönite, and newly approved davisite Ca(Sc,Mg,Ti 3+ ,Ti 4+ )AlSiO 6 ( Ma and Rossman 2009b ), grossmanite Ca(Ti 3+ ,Mg,Ti 4+ )AlSiO 6 ( Ma and Rossman 2009c ), kushiroite CaAlAlSiO 6 ( Kimura et al. 2009...
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Monipite, MoNiP, a new phosphide mineral in a Ca-Al-rich inclusion from the Allende meteorite

Chi Ma, John R. Beckett, George R. Rossman
Published: 01 January 2014
American Mineralogist (2014) 99 (1): 198–205.
DOI: https://doi.org/10.2138/am.2014.4512
... Institution’s National Museum of Natural History with the catalog number USNM 7554. Type allendeite, grossmanite, hexamolybdenum, and hibonite-(Fe), which were described by Ma and Rossman (2009b) , Ma et al. (2009b) , and Ma (2010) , are also present in this section. The holotype grain of monipite is 1...
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Addibischoffite, Ca 2 Al 6 Al 6 O 20 , a new calcium aluminate mineral from the Acfer 214 CH carbonaceous chondrite: A new refractory phase from the solar nebula

Chi Ma, Alexander N. Krot, Kazuhide Nagashima
Published: 01 July 2017
American Mineralogist (2017) 102 (7): 1556–1560.
DOI: https://doi.org/10.2138/am-2017-6032
... an empirical formula of (Ca 0.97 Mg 0.03 )(Al 0.35 Ti 3+ 0.28 Mg 0.21 Ti 4+ 0.12 V 0.04 )(Si 1.02 Al 0.98 )O 6 with a minor grossmanite component. The name kushiroite is assigned to the clinopyroxene using the valence-dominant rule for grossmanite, davisite, and kushiroite ( Ma et al. 2010...
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Hutcheonite, Ca 3 Ti 2 (SiAl 2 )O 12 , a new garnet mineral from the Allende meteorite: An alteration phase in a Ca-Al-rich inclusion

Chi Ma, Alexander N. Krot
Published: 01 April 2014
American Mineralogist (2014) 99 (4): 667–670.
DOI: https://doi.org/10.2138/am.2014.4761
... ), tistarite Ti 2 O 3 ( Ma and Rossman 2009a ), rutile TiO 2 ( Ma et al. 2009 ), davisite Ca(Sc,Ti,Mg)AlSiO 6 ( Ma and Rossman 2009b ), grossmanite CaTiAlSiO 6 ( Ma and Rossman 2009c ), panguite (Ti,Sc,Al,Mg,Zr,Ca,□) 2 O 3 ( Ma et al. 2012 ), kangite (Sc,Ti,Al,Zr,Mg,Ca,□) 2 O 3 ( Ma et al. 2013...
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δ 17 O vs. δ 18 O in ( a ) primary minerals in Compact Type A (CTA) CAI fro...

δ 17 O vs. δ 18 O in ( a ) primary minerals in Compact Type A (CTA) CAI fro...

Published: 01 November 2024
bodies. Oxygen isotopic compositions of primary minerals in CK and CV CAIs plot along ~slope-1 line. The NWA 4964 CTA CAI is isotopically heterogeneous: hibonite, spinel, and louisfuchsite have solar-like 16 O-rich compositions, whereas melilite and grossmanite (except inclusion in spinel) are 16 O
Journal Article

Majindeite, Mg 2 Mo 3 O 8 , a new mineral from the Allende meteorite and a witness to post-crystallization oxidation of a Ca-Al-rich refractory inclusion

Chi Ma, John R. Beckett
Published: 01 May 2016
American Mineralogist (2016) 101 (5): 1161–1170.
DOI: https://doi.org/10.2138/am-2016-5399
... vein composed of grossular plus a highly aluminous phase (corundum?) intersects the spinel on one side and there are also some small blebs of grossmanite (boundary clinopyroxenes in the parlance of Paque et al. 2009 ). ...
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