 | | Report (issue) | | c = 14.269(4) Z=2 X-ray Powder Pattern: Indarch meteorite; essentially identical with eifelite. 3.570...)§=4:66 (Si 11:99 Al 0:01 )§=12:00 O 30 : (2) Indarch meteorite; by electron microprobe, average of six analyses;...accessory mineral in an enstatite chondrite (Indarch meteorite). Association: Hematite, tridymite, sanidine... schreibersite, plagioclase, carbon, tridymite, oldhamite, glass (Indarch meteorite). Distribution: In...In the Indarch, Witchita County, and Canyon Diablo meteorites. From the Bellerberg volcano, two km north |  | | Journal (article/letter/editorial) | | roedderite, from the Ind,arch (enstatite chondrite) meteorite. Roedderite is essentially (K2O, NasO):5MgO:12SiOr...within graphite nodules in the octahedriteiron meteorite,Wichita County (USA), a new occurrence shows a...from Japan (both measured by the writer), the Indarch roedderite, Roedder's original pattern of KzO:5MgO:12SiO2...Poworn DmlnacrroN D.crl Roedderite, W'ichila Co. meteorite 10 50 10 10 80 90 80 5 90 80 5 30 100 10 10 90...069 2.014 10 1 918 5 JO/ Roeclderite, Indarch meteorite (from Fuchs, 1966 and Fuchs et al., 1966) |  | Ma, C., Beckett, J. R., Rossman, G. R. (2012) Buseckite, (Fe,Zn,Mn)S, a new mineral from the Zaklodzie meteorite. American Mineralogist, 97 (7) 1226-1233 doi:10.2138/am.2012.4110 | Journal (article/letter/editorial) | | (Fe,Zn,Mn)S, a new mineral from the Zakłodzie meteorite Chi Ma,* John R. Beckett, and George R. Rossman...size) in contact with two or more of enstatite, plagioclase, troilite, tridymite, quartz, and sinoite. Low-Ni...sinoite, Zakłodzie meteorite, enstatite achondrite Introduction The Zakłodzie meteorite, which is a moderately...During a nano-mineralogy investigation of this meteorite, a new Fe-dominant monosulfide mineral, (Fe,Zn...and survival for the evolution of the Zakłodzie meteorite. Preliminary results are given in Ma et al. (2012) |  | Britvin, S. N., Bogdanova, A. N., Boldyreva, M. M., Aksenova, G. Y. (2008) Rudashevskyite, the Fe-dominant analogue of sphalerite, a new mineral: Description and crystal structure. American Mineralogist, 93 (5) 902-909 doi:10.2138/am.2008.2582 | Journal (article/letter/editorial) | | sphalerite, is an accessory phase in the Indarch meteorite (enstatite chondrite, EH4). It occurs as xenomorphic...Rudashevskyite, new mineral, sphalerite, wurtzite, FeS, meteorite, enstatite chondrite, black smokers Introduction...characterized (Fe,Zn)S sulfide (Mineral K) in the Indarch meteorite (enstatite chondrite, EH4). Further investigations...sphalerite, based on a material from the Indarch meteorite (Mineral K of Ramdohr 1963, 1973). The new...Petersburg, Russia. Rudashevskyite in Indarch The enstatite chondrite Indarch, EH4, is a long known (fall witnessed |  | | Journal (article/letter/editorial) | | 112+ 1712 216 130 from Ambrosia Lake uranium district.. . Barite-quartz phase in the FireCarbonate,...oscillatory zoning and crystallization of magmatic plagioclase. B o u d e t t e ,E . L . a n d F o r d , A ..., Jr. Roedderite, a new mineral from the Indarch meteorite.. a n d l t o , J . .. and Ito, J. Hendricksite..., Jr. Roedderite, a new mineral from the Indarch meteorite. . Fuerstenau, D. W. with Burns, TO VOLUME... Iloffer, J. M. Compositional variations of plagioclase feldspar from a basaltic lava flow. . Hoffman |  | | Journal (article/letter/editorial) | | (People's Republic of China). Two fragments of the meteorite were recovered, weighing respectively 600 g and... Table 1 Roedderite occurrences in meteorites Meteorite Type Paragenesis References Qingzhen EH3...San Cristobal IBiron Olivine, orthopyroxene, plagioclase, phosphate Prinz et al. (1983) Other silicate...tridymite, Ca-pyroxene (diopside and fassaite), Ca-plagioclase (of composition ranging from labradorite to anorthite)...amounts of tridymite, enstatite (En1(0) and plagioclase (Ab90). Subsequently, Olsen (1967) described |  | | Journal (article/letter/editorial) | | two olivine-bearing chondrules in the Kota Kota meteorite (BM1905, 355) A. Pale violet-brown glass (finely...stone), but is scarcein South Oman and very rare in Indarch. Each stone also contains small amounts of one...crushedsamples),but only tridymite was recognizedin Indarch. A detailed investigationof the distribution of...q.rrtB Cnoxnnrms wt. uk MoL o/1 fayalite Indarch (BM 86948) 1 44.r 2 426 3 439 Average 43.5 Koto...electron probe microanalyses lor Kota Kota and Indarch (Table 1), and (4) an anomalous distribution of |  | | Journal (article/letter/editorial) | | NorthernIreland Lead-lead age of the Bondoc meteorite ROYAL R. M&SFWLL Jet Propulsion Laboratory, California...concentration of lead in a portion of the Bondoc meteorite W~JX determined by the isotopic dilution technique...0.005 ppm. Isotopic ratios of the lead in the meteorite were found to be Pb*oe/Pb204 = 20.11, Pb807/Pbso4...present U89s/Uasr ratio in this meteorite is 137.7. THE BONDOC meteorite was recovered a few years ago...Intrigued by the unique features of the Bondoc meteorite, the present writer obtained pieces of it for |  | Hopp, Jens, Trieloff, Mario, Ott, Uli, Korochantseva, Ekaterina V., Buykin, Alexey I. (2014) 39Ar-40Ar chronology of the enstatite chondrite parent bodies. Meteoritics & Planetary Science, 49 (3) 358-372 doi:10.1111/maps.12243 | Journal (article/letter/editorial) | | reactions within the EH group exemplified in the meteorite Qingzhen led to © The Meteoritical Society, 2014...contrary to ordinary chondrites, which have plagioclase as a single major K-bearing mineral, enstatite...EH chondrites Sahara 97096 (EH3, split 1233/2), Indarch (EH4, split 436/1), EET 96135 (EH4/5, split 18)...meteorites were obtained from the Meteorite Working Group. Neuschwanstein, Indarch, and Sahara 97096 were obtained...obtained from the meteorite collection of the Senckenberg Museum, Frankfurt, Germany. The meteorites differ |  | | Journal (article/letter/editorial) | | detail in only a few stony meteorites,be- each meteorite individually, even though each causewith earlier...abundantin a few highly reduced meteorites (e.g., Indarch). Another mineral having an hexagonallayer structure...Hesston Vigarano Holbrook Homestead Hvittis Indarch Jelica Kaba Kandahar Waconda Walters Warrenton...pend on the sulfur and oxygen contents of the meteorite. A higher content of sulfur or oxygen With few...phase of stony meteorites, and minor amounts of plagioclase. Other minerals, Neumann lines are uncommon |  | | Journal (article/letter/editorial) | | 451. Ascension Island, vlasovite, 233. Assisi, meteorite, description, mineralogy, 595. Astrophyllite,...The metallographic structure of the Kodaikanal meteorite, 687 ; The metallographic structure of 1190...see potassium-barium feldspars, 914. Barwell meteorite, anal., 101. Baryte, etching of, 750. Basalt,...and ganophyllite, 893; celsian, 914. Bencubbin meteorite, descr., descr, and anal. of enclaves in, bearing...formanite, topaz, rubellite, 50. Billygoat Donga meteorite, description, 694. Binnenthal, Valais, Switzerland |  | | Journal (article/letter/editorial) | | osumiliteoccurswith quartz,hypersthene, orthoclase,cordierite,plagioclase, Nain complex.It ite,and pyrrhotitein a granulitein...quartz, hypersthene,orthoclase, cordierite, plagioclase, graphite, and pyrrhotite. Phaserelations in...Associated rock types in this contact aureole include plagioclase-hypersthene-quartz granulites and cordierite...Contact Aureole of the Nain Comnlex SaEple No. Plagioclase Or thoc 1a s e Quar tz or thopyroxene Bio t lte...wichita Colomera,,,Mezo--Madaras, Indarch t.^. County , , Meteorite(e/ Meteorite{J ) l{eteorLtetg ) Meteoritera/ |  | | Journal (article/letter/editorial) | | Sahara 97158 and four objects from equilibrated EH4 Indarch. Bulk major element analyses, obtained with electron...abundances in the chondrules from Sahara 97158 and Indarch are within the range of previous analyses of nonporphyritic...superchondritic (Sahara 97158) and subchondritic (Indarch) Yb/Sc ratios; and chondriticnormalized deficits...volatile and volatile elements. In the equilibrated Indarch chondrules, this late process has been further...chondrule fragments in Sahara 97158 (EH3) and Indarch (EH4) chondrites. We explore whether the 1339 |  | | Journal (article/letter/editorial) | | identification has elucidated many aspects of meteorite formation. Of particular interest are five phosphate...calcium- and aluminum-rich silicates in the Allende meteorite, a Type 1II carbonaceous chondrite which fell...of the common minerals olivine, pyroxene, and plagioclase has also been greatly increased by recent researches...(Mason, 1962), when I wrote an account of the meteorite minerals then recognized, see Table 1, the list...(Mg,Fe)Si0 3 Clinopyroxene (Ca,Mg,Fe)Si0 3 Plagioclase (Na,Ca,)(AI,Si)40 8 Serpentine (or chlorite) |  | | Journal (article/letter/editorial) | | NOONAN A F. (1975) The Clovis (No. I), New Mexico, meteorite and Ca, AI and Ti-rich inclusions in ordinary...coarse-grained chondrule rims in the Allende meteorite: Origin, interrelationships and 707 possible...are not observed in most thin sections of this meteorite. Wood and Holmberg (1994) proposed the following...found in EH3 Qingzhen (Rambaldi et al., 1984), EH4 Indarch and Kota-Kota (Fuchs, 1966), and in silicate inclusions...(Olsen, 1967). In Indarch, the roedderite coexists with enstatite (EnIOO), plagioclase (Abw), and tridymite |  | | Journal (article/letter/editorial) | | components in clasts and separates of the Abee meteorite J o h n F. W a c k e r 1 and Kurt Marti 2 I Department...or three K-bearing minerals. The major phase, plagioclase [6], released most of the radiogenic 4°Ar at...[19] measured rare gases in mineral separates of Indarch and observe the highest 129Xe/132Xe ratio in the...900-1000°C, "low-temperature" cartier may be plagioclase since the lower-temperature 129Xe release vaguely...attack of a magnetically separated sample from Indarch (E-4). In contrast to the H N O 3 and HC1 attacks |  | | Journal (article/letter/editorial) | | size, and chemical resistance from Qingzhen (E3), Indarch (E4), Abee and Saint Sauveur (E4-5), and Yilmia...during metamorphism. A carbon-rich fraction of Indarch (E4) is enhanced in Ne-A, CCF-Xe, and LXe. Interestingly...resemble those of C-chondrites, yet these two meteorite classes probably formed rather far apart. Thus...primordial gases of Qingzhen (E3) resemble those of Indarch: they are present in moderate amounts (20Ne, =...fine-grained minerals (cf: density separates of Indarch, Schaeffer ef al., 1965), and an HF/ HCl treatment |  | | Journal (article/letter/editorial) | | formed as a highly fractionated system Lvithin the meteorite or as part of a chemical-pressure environment...environment foreign to that indicated for the meteorite. INrnotucuort The first meteoritic occurrenceof cordierite...colored inclusion in the AIIende chondrite. This meteorite, which fell near Parral, Chihuahua, Mexico on...abundance and unusual features,studies of this meteorite will undoubtedly attract the attention of investigatorsfor...of material made available to the writer. The meteorite is composedof chondrules embeddedin a black fine-grainedmatrix |  | | Journal (article/letter/editorial) | | orthopyroxene (protoenstatite and orthoenstatite), plagioclase, minor olivine if any, clinopyroxene (augite)...partial melting experiments at low fO2 on the Indarch enstatite chondrite (McCoy et al., 1999; Berthet...0 3.7 1.5 CIPW norm calculation (wt%) Quartz Plagioclase 24.8 Diopside 21.6 Hypersthene 50.2 Olivine 3...norm calculation (wt%) without TiO2g Quartz Plagioclase Diopside Hypersthene Corundum 10 17.2 36.6...orthopyroxene (50 wt%), clinopyroxene (22 wt%), plagioclase (23 wt%) and minor olivine (4 wt%). Group 2 contains |  | | Journal (article/letter/editorial) | | microscopist, Gustav Tschermak, and the outstanding meteorite collection of that day, the Vienna collection...meteorites. Table 1 traces the development of meteorite mineralogy over the following seventy years. It...extracted sulfur with alcohol from the Cold Bokkeveld meteorite, and later investigators extracted it from other...(Whitlockite) Olivine Orthopyroxene Clinopyroxene Plagioclase Serpentine (Fe, Ni) (r'e, Ni) (,u C C SiC FegC...weathering. In 1955, therefore, to specializein meteorite mineralogy might well have beenconsideredthe refugeol |  | | Journal (article/letter/editorial) | | impact melt) relative to the Shallowater reference meteorite (4562.3 ± 0.4 Ma, all errors are 1r). I–Xe ages...cooling. The enstatite chondrites Abee (EH4), Indarch (EH4), EET 96135 (EH4/5) and St. Marks (EH5) encompass...ordinary chondrites. Other important minerals are plagioclase, kamacite (with several ⇑ Corresponding author...substantial variation even within an individual meteorite (e.g. Birck and Allégre, 1988; Wadhwa et al....53 Mn/55Mn-ratios in sulfides within individual meteorite specimens of EL 3 chondrites that are equivalent |  | | Journal (article/letter/editorial) | | The different chondrites and achondrites in our meteorite collections offer a wide range in possible oxidation...than Na, but a highly reduced and volatile free meteorite class has not yet been observed. Note also that...enstatite chondrites and aubrites but not with other meteorite groups (e.g., Clayton, 1993 and references therein)...Fe-free pyroxene. Other abundant minerals are plagioclase, diopside, and forsterite (e.g., Watters and...mainly present in albite-rich . plagioclase. A wide range of plagioclase abundances is reported (1.3-16 |  | | Journal (article/letter/editorial) | | nearly FeO-free enstatite, with minor albitic plagioclase, nearly FeO-free diopside and forsterite, metallic...lithologies, which should have contained 10 vol% plagioclase, then meteorites of enstatiteplagioclase basaltic...and of nearly FeO-free enstatite, perhaps with plagioclase, diopside and sulfide. While known aubrites clearly...alert to the potential discovery of a genuine meteorite from Mercury which, superficially, should resemble...and, if true, a meteorite from Mercury should not resemble any currently known meteorite type. & 2010 Elsevier |  | Udry, Arya, Wilbur, Zoë E., Rahib, Rachel R., McCubbin, Francis M., Vander Kaaden, Kathleen E., McCoy, Timothy J., Ziegler, Karen, Gross, Juliane, DeFelice, Christopher, Combs, Logan, Turrin, Brent D. (2019) Reclassification of four aubrites as enstatite chondrite impact melts: Potential geochemical analogs for Mercury. Meteoritics & Planetary Science, 54 (4) 785-810 doi:10.1111/maps.13252 | Journal (article/letter/editorial) | | History, Smithsonian Institution, Washington, District of Columbia 20560, USA 5 Department of Earth and...equigranular, nearly endmember enstatite, Fe,Ni metal, plagioclase, terrestrial alteration products, and sulfides...predominantly consist of nearly FeO-free enstatite, plagioclase, Si-bearing metal, and exotic sulfides. The mineral...addition, investigation of members of the enstatite meteorite clan allow us to distinguish between the various...than aubrites based on prior studies of both meteorite groups (Keil 1968; Watters and Prinz 1979; Brett |  | | Journal (article/letter/editorial) | | isotope fractionation metal silicate enstatite meteorite Bulk Silicate Earth Earth's core formation a...differentiation. They are the only primitive meteorite group with oxygen isotope compositions and metal-to-silicate...energies of reaction. The meteorites Abee and Indarch are classified as EH4 chondrites. Abee is a breccia...mineral abundances exist in different areas of the meteorite (total silicates ∼30 to 65 wt.%, total metal ∼20...(Rubin and Keil, 1983; Rubin and Scott, 1997). Indarch contains ∼18 wt.% metal (kamacite), ∼10 wt.% sulfides |
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