 | | Report (issue) | | (Na; K)2 (Mg; Fe2+ )5 Si12 O30 Roedderite c 2001 ° Mineral Data Publishing, ver sion 1.2 Crystal Data:...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...tridymite, oldhamite, glass (Indarch meteorite). Distribution: In the Indarch, Witchita County, and Canyon |  | | Journal (article/letter/editorial) | | SEPTEMBER_OCTOBER, 1967 A NEW OCCURRENCEOF ROEDDERITE AND ITS BEARING ON OSUMILITE-TYPEMINERALS Eoweno...ne$/ mineral, roedderite, from the Ind,arch (enstatite chondrite) meteorite. Roedderite is essentially...within graphite nodules in the octahedriteiron meteorite,Wichita County (USA), a new occurrence shows a...the new roedderite, osumilite from Japan (both measured by the writer), the Indarch roedderite, Roedder's...scrutiny it is difficult to teII the Wichita County roedderite from osumilite in spite of the large differencesin |  | | Journal (article/letter/editorial) | | Springer-Verlag 1980 First Terrestrial Occurrence of Roedderite in Volcanic Ejecta of the Eifel, Germany G e...Abstract. I d i o m o r p h i c crystals o f roedderite occur in melt-coated cavities o f xenoliths o...o f the gneisses by the tephrite m a g m a . Roedderite belongs, together with several other rare silicate...there are close chemical relationships between roedderite and the minerals merrihueite ( D o d d et al...f o u n d to coexist with roedderite. Occurrence Introduction Roedderite was first described as a new |  | | Journal (article/letter/editorial) | | ROEDDERITE IN THE QINGZHEN (EH3) CHONDRITE E.R. Rambaldi and R.S. lb\ian Jet Propulsion Laboratory California...Center Thousand Oaks, CA 91360 The rare mineral roedderite, (Nal.09 KO.89 Cao.ozh.oo (Mg4 .7 1 Fe0.27)4...sulfide phases of metal-sulfide assemblages. The roedderite crystals are connected through oxide and silicate...surface of the assemblages strongly suggests that roedderite originated in the presence of a fluid phase,...(People's Republic of China). Two fragments of the meteorite were recovered, weighing respectively 600 g and |  | 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...troilite, oldhamite, niningerite, schreibersite, and roedderite. Macroscopically, rudashevskyite is black with...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 |  | | Journal (article/letter/editorial) | | silicate minerals forsterite, enstatite, and roedderite by heating of amorphous "protosilicate" gels...in meteorites (Mason 1962). The rare mineral roedderite, (Na, K)2MgsSi1203o, has also generally been...Forsterite Clinoenstatite Orthoenstatite Roedderite Modified roedderite xMgO" y S i O 2 9z I - I 2 0 Mg2SiO4...0.1 and 300 s between pulses, but except for roedderite-containing samples there was little difference...Diffraction Standards 1972). In the identification of roedderite a good fit of peak positions was obtained, but |  | | Journal (article/letter/editorial) | | born in New York City in the Washington Heights district of Manhattan. At an early age, his family moved...woodruffite (Frondel 1953), gonyerite (Frondel 1955), roedderite (Fuchs, Frondel, and Klein 1966), and billingsleyite...billingsleyite (Frondel and Honea 1968). Roedderite was described from a meteorite. For a decade Frondel was involved... and C. Klein Jr. 1966. Roedderite, a new mineral from the Indarch meteorite. American Mineralogist 51:949–55 |  | | 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) | | 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...(Dodd et 01., 1965; Wood and Holmberg, 1994). Roedderite (Na,K)z(Mg,Fe)sSi120JO (na > 0.5, fe < 0.5) has...lJLL3.5 ALHA77011 and LLJ.7 ALHA77278, a silica-roedderite-bearing chondrule in LJ MezO-Madaras, and a ...5 ALHA77115. The findings of merrihueite and roedderite in ALHA77011, ALHA771l5, ALHA77278 and MezO-Madaras |  | | Journal (article/letter/editorial) | | incongruently to produce At relatively greater a roedderite-diopside-forsterite-melt-assemblage. vapor pressures...assemblagesare separatedby the melting curve for roedderite. The intersection of the three univariant melting...cell dimensions and refractive indices of the roedderite produced by decomposition of richterite (@:10...stability of roedderite is similar to the synthesis conditions of an iron bearing roedderite reported by...eNn C. Kr,enr Jn. (1966) Roedderite, a new mineral from the Indarch meteorite. Amer. Minaal.5l, 949-955 |  | | Journal (article/letter/editorial) | | 112+ 1712 216 130 from Ambrosia Lake uranium district.. . Barite-quartz phase in the FireCarbonate,...L. H. and Klein, C., Jr. Roedderite, a new mineral from the Indarch meteorite.. a n d l t o , J . .. and...Frondel, C. and Klein, C., Jr. Roedderite, a new mineral from the Indarch meteorite. . Fuerstenau, D. W. with...L. H. and tr'rondel, C. Roedderite, a new mineral from the Indarch meteorite. Kleppa, O. J. with Holm...Roeblingite, new data on (Foit). . Roedderite, a new mineral from Indarch the meteorite (Fuchs, Frondel, Klein) |  | Velde, Danielle, Medenbach, Olaf, Wagner, Christiane, Schreyer, Werner (1989) Chayesite, K(Mg,Fe2+)4Fe3+[Si12O30]: A new rock-forming silicate mineral of the osumilite group from the Moon Canyon (Utah) lamproite. American Mineralogist, 74 (11-12) 1368-1373 | Journal (article/letter/editorial) | | member of the osumilite group. It is related to roedderite,(Na,K)r(Mg,Fe)r[Si,rOro], by the substitutionFe3++...2)3I rrElDrr Fe3*[Si,rOro] and is related to roedderite, (Na,K)r[r41T()' rOro]. (Mg,Fe'?+)r[Si,rOro]...samplescollectedfrom the sameoutcrop. Unlike roedderite, which in terrestrial occurrencesis restricted...369 Choyesite,Moon Conyon Choyesrte,Concorix Roedderite,Eifel Mountoins = od o tl. (K*No)p.f.u. ...roedderiteendmembers.Dashedline separates the chayesiteand roedderite solidsolutionfieldsasdefinedby the alkali values |  | | Journal (article/letter/editorial) | | His sharp eye led him to discover eight new meteorite minerals and to find the first extraterrestrial...known only from terrestrial rocks. One of his meteorite mineral finds, djerfisherite, has been subsequently...the full spectrum of meteorite types. His investigation of the Murchison meteorite is one of the most thorough...thorough studies of a complex meteorite published in a single paper. Reprint requests have exhausted...more clue to the conditions under which a given meteorite type formed. Once he found a new mineral he scoured |  | | Journal (article/letter/editorial) | | localitiesas well as analysesof closelyrelated yagiite, roedderite, T h e o x i d e t o t a l r a n g e sf r o...MERRIHUEITE ROEDDERITE ROEDDERITE wichita Colomera,,,Mezo--Madaras, Indarch t.^. County , , Meteorite(e/ Meteorite{J... L2.O (see )Lsen and Bunch' 1970). the Indarch roedderite and in merrihueite this substitution occursalmost...evident in the roedderitefrom the Wichita County meteorite (Olsen, 1967). Here the extra Na (0.57) in the...l y roedderite. approximately balancethe loss of 0.45 Si in the Il site. relative to a roedderite"end |  | | 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) | | those of the natural minerals merrihueite and roedderite which contain Na and Fe +2 partly substituting...equilibrium conditions. Hence merrihueite and roedderite are not likely to be found in equilibrated chondrites...d m a g n e s i u m p r e d o m i n a t e in roedderite, (Na, K)2(Mg, Fe)sSi120a0 (FucHs, F~O~DEL a n...differences between osumilites and the merrihueite-roedderite minerals are the lack of alumina and the higher...although most recently even a slightly ahiminous roedderite was described b y OLSE~ (1967a). According to |  | Noguchi, Takaaki, Ohashi, Noriaki, Tsujimoto, Shinichi, Mitsunari, Takuya, Bradley, John P., Nakamura, Tomoki, Toh, Shoichi, Stephan, Thomas, Iwata, Naoyoshi, Imae, Naoya (2015) Cometary dust in Antarctic ice and snow: Past and present chondritic porous micrometeorites preserved on the Earth's surface. Earth and Planetary Science Letters, 410. 1-11 doi:10.1016/j.epsl.2014.11.012 | Journal (article/letter/editorial) | | kosmochlor (NaCrSi2 O6 )-rich high-Ca pyroxene, roedderite (K, Na)2 Mg5 Si12 O30 , and carbonaceous nanoglobules...presence of kosmochlor-rich high-Ca pyroxene and roedderite, which suggest that they have building blocks...5. BF image of a roedderite-bearing fragment. The fragment is composed of roedderite (Rd), low-Ca pyroxene...The lower left inset shows a SAED pattern of roedderite. Fig. 3. BF image of an ultrathin section of...In a present CP MM D03IB13, a well crystalline roedderite coexisting low-Ca pyroxene and amorphous silicate |  | | 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 |  | 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...carrier phases of K present, e.g., djerfisherite or roedderite, among others. Additionally, K is heterogeneously...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) | | Apollo lunar program, Lou became interested in meteorite research.Later, under that program, he worked...body. Lou's interestsled him acrossthe gamut of meteorite types, from common chondrites to stony irons and...Fisher-djerfisherite. This phase,first found in a meteorite, has turned up in terrestrial mantle rocks, as...chondrite from Murchison, Australia. This type of meteorite is particularly difficult to study, consisting...end of 1979 he received repeated offers to join meteorite researchgroups at Caltech, the University of New |  | | 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)...Na)(Fe,Ni)I2(S,CI)14 Caswellsilverite NaCrS, Roedderite (Na,K),Mg sSiI20 30 (I) (2) (I) (2) (I) K 8...only other possible silicate host mineral is roedderite [(Na,K)zMgsSiI2030, Table 1). However, in order |  | Bruckmann, Petra, Chatterjee, NiranjanD., Rammensee, Werner, Bielefeld, Klaus (1993) An equation of state for roedderites, (K, Na)2Mg5[Si12O30], based on Knudsen cell mass spectrometry and synthesis of eifelite-roedderite crystalline solutions. Physics and Chemistry of Minerals, 20 (5) doi:10.1007/bf00215107 | Journal (article/letter/editorial) | | Cell Mass Spectrometry and Synthesis of Eifelite-Roedderite Crystalline Solutions Pctra Bruckmann 1, Niranjan...available. Besides roedderites, single-phase eifelite-roedderite crystalline solutions have also been snythesized...equation of state for roedderite crystalline solutions based on KMS. Roedderite-merrihueite group of...Na)2MgsSi1203o. The chemical data also prove that the roedderite end members K2MgsSi12030 and Na2MgsSii203o have...isostructural with roedderite and shows a miscibility towards that phase. Thus, the roedderite-eifelites belong |  | | Journal (article/letter/editorial) | | kindly provided material from the South Oman meteorite, and to Dr, Brian Mason who read the manuscript...Chainpur meteorite. 'Stiente, 149, 856-860. Fucns, L. H., C. FpoNlnr. lNn C. Kr.nrlr (1966) Roedderite, a new...new mineral from the Indarch meteorite. Amer Mineral, 51. 949-955. HorsoN, G.Y.(927) SixrecentIndianaerolites |  | Hawthorne, Frank C., Abdu, Yassir A., Ball, Neil A., Černý, Petr, Kristiansen, Roy (2014) Agakhanovite-(Y), ideally (YCa)◻2KBe3Si12O30, a new milarite-group mineral from the Heftetjern pegmatite, Tordal, Southern Norway: Description and crystal structure. American Mineralogist, 99 (10) 2084-2088 doi:10.2138/am-2014-4880 | Journal (article/letter/editorial) | | O30 (16) Poudretteite Na2 o2 K B3 Si12 O30 (17) Roedderite Mg2 Nao K Mg3 Si12 O30 (18) Shibkovite Ca2 Ko...chemistry of double-ring silicates; structure of roedderite at 100 and 300 K. European Journal of Mineralogy...and Klein, C. Jr. (1966) Roedderite, a new mineral from the Indarch meteorite. American Mineralogist,...Schreyer, W. (1980) First terrestrial occurrence of roedderite in volcanic ejecta of the Eifel, Germany. Contributions |  | | Journal (article/letter/editorial) | | Among the samples studied were the meteorites Indarch and Hoba, a chondrite and an iron, respectively...km/set, 6 ,u silicon carbide particles caused Indarch to erode at a rate of about 3 x 10m4cm/J/cm2 of...single crystal, and additional bombardment of Indarch by 7 ,u iron particles, yielded erosion rates that...least two orders of magnitude smaller than that of Indarch. These results and analogous results from the literature... On the other hand, FISHER (1966) proposed a meteorite generation model that employs the mechanism of |
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