 | | Journal (article/letter/editorial) | | Davisite, CaScAlSiO6, a new pyroxene from the Allende meteorite Chi Ma* and GeorGe r. rossMan Division of...in an ultra-refractory inclusion from the Allende meteorite. The mean chemical composition determined...refractory phase, ultra-refractory inclusion, Allende meteorite introduCtion oCCurrenCe, assoCiated MineraLs...During a nano-mineralogy investigation of the Allende meteorite, a Sc-rich pyroxene was observed in an ultra-refractory...crystal structure of a clinopyroxene from the Allende meteorite, CaScAlSiO6, where scandium is the dominant |  | | Journal (article/letter/editorial) | | Ti2O3, a new refractory mineral from the Allende meteorite Chi Ma* and GeorGe r. rossMan Division of...corundum crystals within a chondrule from the Allende meteorite. The mean chemical composition determined...oxide, Allende meteorite introduCtion During a nanomineralogy investigation of the Allende meteorite, a...corundum-rich cluster of refractory grains in situ in an Allende chondrule. Electron microprobe, high-resolution...situ in a ferromagnesian chondrule from the Allende meteorite, along with about 30 corundum (Al2O3) grains |  | | Journal (article/letter/editorial) | | Ca3Ti2(SiAl2)O12, a new garnet mineral from the Allende meteorite: An alteration phase in a Ca-Al-rich inclusion...(FUN) Ca-Alrich inclusion (CAI) Egg-3 from the Allende CV (Vigarano type) carbonaceous chondrite. The...g/cm3. Hutcheonite is a new secondary phase in Allende, apparently formed by iron-alkali-halogen metasomatic...hutcheonite during the metasomatic alteration of the Allende CAIs suggests some mobility of Ti during the alteration...mineral, schorlomite group, garnet supergroup, Allende meteorite, carbonaceous chondrite, Ca-Al-rich inclusion |  | | Journal (article/letter/editorial) | | Mg)Al12O19, a new alteration mineral from the Allende meteorite Chi Ma* Division of Geological and Planetary...Ca-,Al-rich refractory inclusion from the Allende meteorite. It occurs as scattered micrometer-sized single...refractory inclusion, secondary alteration, Allende meteorite, carbonaceous chondrite, nanomineralogy introduCtion...During a nanomineralogy investigation of the Allende CV3 meteorite at Caltech, new refractory minerals and...Al-rich mineral, (Fe,Mg)Al12O19, identified in an Allende Ca-,Al-rich refractory inclusion (CAI). Electron-microprobe |  | | Journal (article/letter/editorial) | | Grossmanite, CaTi3+AlSiO6, a new pyroxene from the Allende meteorite Chi Ma* and GeorGe r. rossMan Division of...Ca-,Al-rich refractory inclusions from the Allende meteorite. The mean chemical composition determined... Ti-rich pyroxene, refractory inclusion, Allende meteorite, carbonaceous chondrite introduCtion During...a nano-mineralogical investigation of the Allende meteorite (a CV3), Ti-rich pyroxenes were observed in...clinopyroxenes (16–18 wt% total TiO2) have been observed in Allende since its fall in 1969 (e.g., Fuchs 1971; Dowty |  | | Journal (article/letter/editorial) | | from an ultrarefractory inclusion from the Allende meteorite Chi Ma*, John R. Beckett and George R. Rossman...During a nanomineralogy investigation of the Allende meteorite with analytical scanning electron microscopy...chemistry. Allendeite is named after the Allende meteorite. The name hexamolybdenum refers to the symmetry...alloy, new mineral, EBSD, nanomineralogy, Allende meteorite, CV3 carbonaceous chondrite Introduction...the lyrics. The Allende meteorite, which fell near Pueblito de Allende, Chihuahua, Mexico, on February 8 |  | Ma, C., Tschauner, O., Beckett, J. R., Rossman, G. R., Liu, W. (2012) Panguite, (Ti4+,Sc,Al,Mg,Zr,Ca)1.8O3, a new ultra-refractory titania mineral from the Allende meteorite: Synchrotron micro-diffraction and EBSD. American Mineralogist, 97 (7) 1219-1225 doi:10.2138/am.2012.4027 | Journal (article/letter/editorial) | | ultra-refractory titania mineral from the Allende meteorite: Synchrotron micro-diffraction and EBSD Chi...within an amoeboid olivine inclusion from the Allende CV3 carbonaceous chondrite. The phase was characterized...new ultra-refractory mineral, new titania, Allende meteorite, CV3 carbonaceous chondrite, synchrotron micro-diffraction...During a nano-mineralogy investigation of the Allende meteorite at Caltech, a new titania mineral (Ti4+,Sc...Occurrence The Allende meteorite fell in and near Pueblito de Allende, Chihuahua, Mexico, on February 8 |  | Ma, C., Tschauner, O., Beckett, J. R., Rossman, G. R., Liu, W. (2013) Kangite, (Sc,Ti,Al,Zr,Mg,Ca,◻)2O3, a new ultra-refractory scandia mineral from the Allende meteorite: Synchrotron micro-Laue diffraction and electron backscatter diffraction. American Mineralogist, 98 (5) 870-878 doi:10.2138/am.2013.4290 | Journal (article/letter/editorial) | | ultra-refractory scandia mineral from the Allende meteorite: Synchrotron micro-Laue diffraction and electron...davisite-dominant ultra-refractory inclusion from the Allende CV3 carbonaceous chondrite. The phase was characterized...o)2O3, new ultra-refractory mineral, scandia, Allende meteorite, CV3 carbonaceous chondrite, synchrotron micro-Laue...previously described inclusion, ACM-3, in the Allende meteorite (Ma and Rossman 2009b), a new ultra-refractory...Occurrence The Allende meteorite fell in and near Pueblito de Allende, Chihuahua, Mexico on February 8 |  | | Journal (article/letter/editorial) | | Coolidge, Mulga (West) and, to a lesser extent, Allende, as evidenced by ferromagnesian mineral equilibration...the metamorphic effects in the Allende chondrite (the only meteorite of the group that has been intensively...of the Vigarano subtype, it is suggested that Allende alone may not adequately reflect the wide spectrum...carbonaceous chondritic scription of the Arch meteorite has not been pubmeteorites [particularly the Type...system. The C3 class has been subdivided into meteorite find from Australia, may also belong with two |  | | Journal (article/letter/editorial) | | Majindeite, Mg2Mo3O8, a new mineral from the Allende meteorite and a witness to postcrystallization oxidation...Type B1 Ca-Al-rich inclusion, ACM-2, from the Allende CV3 carbonaceous chondrite. The type majindeite... Mg2Mo3O8, new mineral, kamiokite group, Allende meteorite, CV3 carbonaceous chondrite, EBSD, Ca-Al-rich...majindeite, Mg2Mo3O8, which was discovered in the Allende Type B1 Ca-Al-rich inclusion (CAI) ACM-2. In addition...2014a; Ma 2015a), and two first occurrences in a meteorite for the Mo-oxides tugarinovite (MoO2) and kamiokite |  | | Journal (article/letter/editorial) | | REFRACTORY INCLUSIONS =-=10141 IN THE ALLENDE METEORITE Annu. Rev. Earth Planet. Sci. 1980.8:559-608...INTRODUCTION The fall of the Allende Type 3 carbonaceous chondrite in Chihuahua, Mexico, on February 8, 1 969...severely limited by the rarity of these types of meteorite, their small sizes, and the relatively small sample...Such a view is shown in Figure 1 , from which Allende is seen to consist of a heterogeneous mixture of...inde pendent histories. Except for its size, Allende does not appear to be un usual among other Type |  | Weinbruch, S., Zinner, E.K., El Goresy, A., Steele, I.M., Palme, H. (1993) Oxygen isotopic composition of individual olivine grains from the Allende meteorite. Geochimica et Cosmochimica Acta, 57 (11) 2649-2661 doi:10.1016/0016-7037(93)90423-t | Journal (article/letter/editorial) | | OO of individual olivine grains from the Allende meteorite S. WEINBRUCH, Is2E. K. ZINNER,~ A. EL GORESY...compositions of individual olivine grains from the Allende meteorite were determined by ion microprobe techniques...grains (6 “0 = - 11 %o; 6 I80 = -8%0) fall on the Allende mixing line but are significantly less enriched...result of crystallization of chondrule melts. Fayalite-rich rims of the IOGs are less enriched in I60...olivines have oxygen isotopic compositions similar to fayalite-rich rims. However, there are variations in the |  | | Journal (article/letter/editorial) | | electron microscopy of chondrule minerals in the Allende meteorite : constraints on the thermal and deformational...solar nebula prior to or during accretion of the meteorite parent bodies. The textures and mineralogy of...Miiller et al. : Chondrule minerals in the Allende meteorite heat source, precursor material, cooling...defects, precipitates, grain and phase boundaries). Allende is one of the best studied meteorites, but little...have chosen the Allende CV carbonaceous chondrite for our study, because this meteorite belongs to the |  | | Journal (article/letter/editorial) | | Fayalitic Olivine . . . . . . . . . . . . . . Pure Fayalite . . . . . . . . . . . . . . . . . . . Oxidation...and the Allende meteorite fell in Mexico, CV3 chondrites have played a major role in meteorite studies...more primitive than other chondrites, and because Allende contains numerous large, seemingly pristine and...carbonaceous chondrite fall, Allende quickly became the most widely studied meteorite, a title it still holds...holds today. Initially, studies of CAIs from Allende appeared to validate the recently developed equilibrium |  | KROT, ALEXANDER N., PETAEV, MICHAEL I., ZOLENSKY, MICHAEL E., KEIL, KLAUS, SCOTT, EDWARD R. D., NAKAMURA, KEIKO (1998) Secondary calcium-iron-rich minerals in the Bali-like and Allende-like oxidized CV3 chondrites and Allende dark inclusions. Meteoritics & Planetary Science, 33 (4) 623-645 doi:10.1111/j.1945-5100.1998.tb01668.x | Journal (article/letter/editorial) | | minerals in the Bali-like and Allende-like oxidized CV3 chondrites and Allende dark inclusions ALEXANDERN...matrices in the Bali-like and Allende-like oxidized CV3 chondrites and Allende dark inclusions. In type I...andradite and pure fayalite. We infer that Ca-Fe-rich pyroxenes, andradite, fayalite, magnetite, and phyllosilicates...fractionation of the coexisting magnetite and fayalite (-20%0) (Krot et at., 1998) are consistent with...this interpretation. In type I chondrules in the Allende-like CV3 chondrites and dark inclusions, magnetite-sulfide |  | KROT, ALEXANDER N., PETAEV, MICHAEL I., SCOTT, EDWARD R. D., CHOI, BYEON-GAK, ZOLENSKY, MICHAEL E., KEIL, KLAUS (1998) Progressive alteration in CV3 chondrites: More evidence for asteroidal alteration. Meteoritics & Planetary Science, 33 (5) 1065-1085 doi:10.1111/j.1945-5100.1998.tb01713.x | Journal (article/letter/editorial) | | subgroups or lithologies, Bali-like (cV3,,~) and Allende-like (CV3,d), in which chondrules, calcium-aluminum-rich...sodium phlogopite), magnetite, Ni-rich sulfides, fayalite (Fa>go), Ca-Fe-rich pyroxenes (Fs 10-5oW045-50)...to various degrees by fayalite, Ca-Fe-rich pyroxenes and minor andradite. Fayalite veins crosscut fine-grained...isotopic compositions of the coexisting magnetite and fayalite plot close to the terrestrial fractionation line...(-20%0). We infer that phyllosilicates, magnetite, fayalite, Ca-Fe-rich pyroxenes and andradite formed at |  | Hua, X, Adam, J, Palme, H, El Goresy, A (1988) Fayalite-rich rims, veins, and halos around and in forsteritic olivines in CAIs and chondrules in carbonaceous chondrites: Types, compositional profiles and constraints of their formation. Geochimica et Cosmochimica Acta, 52 (6) 1389-1408 doi:10.1016/0016-7037(88)90210-4 | Journal (article/letter/editorial) | | Printed in U.S.A. 00167037/88/$3.00 + .oO Fayalite-rich rims, veins, and halos around and in forsteritic...accepted in revisedform March 7, 1988) Abstract-Fayalite-rich rims, veins, and halos around and in forsteritic...grains in carbonaceous chondrites. The presence of fayalite rodlike crystals and laths in rims, veins, in...for the enrichment of Al, Cr, and Ti along the fayalite-forsterite interface. Are these elements found...an intimate intergrowth between forsterite and fayalite in chondrules, chondrule rims, cakiumaluminum-rich |  | | Journal (article/letter/editorial) | | 1990. Printed in USA FeO-rich rims and veins in Allende forsterite: Evidence for high temperature condensation...Abstract-Forsteritic olivine grains in the Allende meteorite are commonly rimmed by FeO-rich olivine. New...cores to fayalite-rich rims, excluding oxidation of metal as a source of rim FeO. The fayalite content...were found at the boundary between forsterite and fayalite-rich rim, within the rim itself and in fayalitic...of Cr is available. Chromite at the forsterite-fayalite interface was formed by diffusion of Cr from forsterite |  | | Journal (article/letter/editorial) | | lath-shaped matrix olivine in the CV3 chondrite Allende and its dark inclusions ALEXANDER N. KROT1*, EDWARDR...1996 September I I ) Abstract-We have studied an Allende dark inclusion by optical microscopy, scanning...isolated olivines and matrix, which, as in the Allende host, is mainly composed of 5-20 p m long lath-shaped...texturally and compositionally identical to those in Allende host, suggesting that they have similar origins...p m long) intergrown with nepheline. As in the Allende host, fayalitic olivine veins may crosscut altered |  | Simon, S. B., Grossman, L., Casanova, I., Symes, S., Benoit, P., Sears, D. W. G., Wacker, J. F. (1995) Axtell, a new CV3 chondrite find from Texas. Meteoritics, 30 (1) 42-46 doi:10.1111/j.1945-5100.1995.tb01210.x | Journal (article/letter/editorial) | | Abstract-We describe a previously unreported meteorite found in Axtell, Texas, in 1943. Based on the...chondrites, although unlike Allende it escaped strong sulfidation. The meteorite bears a strong textural...textural resemblance to Allende, and its chondrule population and matrix appear to be quite similar to those...those of Allende, but its refractory inclusions, thermoluminescence properties, and cosmogenic 6OCO abundances...metamorphic grade slightly lower than that of Allende. INTRODUCTION The latter cut the specimen into |  | | Journal (article/letter/editorial) | | in calcium-aluminum-rich inclusions in the Allende meteorite LOUIS H. FUCHS* and MILTON BLANDER? Argonne...molybdenite in a meteorite have been made in two Ca-Al-rich inclusions in the Allende chondrite. The mineral...calcium-aluminum-rich inclusions (CAI’s) in the Allende meteorite. This mineral has not been previously recognized...molybdenite in several polished sections of the Allende matrix, in 30 chondrules and in 25 other CAI’s...areas were noticed within pentlandite, in the Allende matrix and in one chondrule. They appeared to resemble |  | | Journal (article/letter/editorial) | | divided into the reduced and the Bali-like and Allende-like oxidized subgroups largely based on secondary...Vigarano show alteration features similar to those in Allende: metal is oxidized to magnetite; low-Ca pyroxene...Chromium-poor magnetite is preferentially replaced by fayalite. Chondrule mesostases are replaced by phyllosilicates;...fine-grained (4 pm) ferrous olivine, anhedral fayalite grains (FasGloo), rounded objects of porous Ca-Fe-rich...individual chondrules and CAIs of both Bali-like and Allende-like materials-in the reduced CV chondrite Vigarano |  | | Journal (article/letter/editorial) | | and coarse-grained chondrule rims in the Allende meteorite: Origin, interrelationships and possible precursor...chondrule rims and two composite samples from CV3 Allende were determined by instrumental neutron activation...Three rare nonporphyritic CV chondrules (from Allende, Leoville and Vigarano) were analyzed by broad-beam...in the chondrules and 0.5 to 2X those in bulk Allende. Rims as a group are more homogeneous than chondrules...rims. MISAWA and NAKAMURA (1986a.b) analyzed ~20 Allende chondrules by isotope dilution techniques supplemented |  | | Journal (article/letter/editorial) | | 1356-1362, 1991 Euhedral awaruite in the Allende meteorite: Implications for the origin of awaruite-...a low-FeO porphyntic olivine chondrule in the Allende CV3 carbonaceouschondrite is comprised of 9 vol0/o...Complex in Pakistan (Ahmed and drites such as Allende (Haggerty and McMahon, 7979; Bevan, l98l). Grain...those in Alafter anhedral magnetite and pentlandite (de Quervain, lende (Rubin et al., 1988).Haggertyand...reported occurrenceofeuhedral awa- examined > 1000 Allende chondrules in thin section: in Ir.lrnonucrroN |  | | Journal (article/letter/editorial) | | OO Constraints on the thermal history of the Allende parent body as derived from olivine-spine1 thermometry...determine the extent of thermal metamorphism on the Allende parent body. The chemical composition of olivine...Fe-rich isolated olivine grains from the Allende meteorite were analysed with an electron microprobe...limits for peak metamorphic temperatures on the Allende parent body of approximately 800 K. This may represent...spine]. Steep Fe/Mg concentration gradients in Allende olivine of various textural settings provide an |
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