AMN 39,2 Table 1. Newly Classified Meteorites

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Home Antarctic MeteoritesAntarctic Meteorite NewslettersAMN 39,2 Table 1. Newly Classified Meteorites
Volume 39 No. 2 – September 2016

Table 1. Newly Classified Antarctic Meteorites

Sample Number Weight (g) Classification Weathering Fracturing %Fa %Fs
LAR 12154 47.2CV3 CHONDRITEA/BB0-53
LAR 12247 137.4CR2 CHONDRITEA/BA0-3011-17
LAR 12252 147.5EH3 CHONDRITEAA/B 0-4
MIL 13013 2893.9IRON-IABBA  
MIL 13043 1.0CM2 CHONDRITEBA0-31 
MIL 13056 0.5EH3 CHONDRITEBA 0-1
MIL 13067 2.5CV3 CHONDRITEBA/B0-81-7
MIL 13077 0.4CK5 CHONDRITEBeA/B3023
MIL 13078 5.4CM2 CHONDRITEBeA/B0-44 
MIL 13117 0.8CV3 CHONDRITEBeA/B0-191
MIL 13118 0.7CV3 CHONDRITEBeA/B0-303-14
MIL 13124 1.7EUCRITE (BRECCIATED)AA/B 26-62
DOM 14170 224.6IRON-UNGROUPEDA/BA  
MIL 15052 865.4IRON-IIIABBA  
MIL 15080 38.9EUCRITE (BRECCIATED)AA/B 48-58
MIL 15099 39.3EUCRITE (BRECCIATED)AA/B 26-59
MIL 15114 55.1PALLASITEBA12-13 
MIL 15230 30.1CV3 CHONDRITEBA0-272-5
MIL 15309 48.0DIOGENITEA/BB3125
MIL 15380 374.2EUCRITE (BRECCIATED)AeB 25-60
MIL 15381 181.0CV3 CHONDRITEB/CeB/C0-51-2
LAR 12012   1132.2 H6 CHONDRITE B/C A
LAR 12029   2889 H6 CHONDRITE B B
LAR 12044   296.2 H5 CHONDRITE A/B B
LAR 12045   457.7 H5 CHONDRITE B/C B
LAR 12046   254.3 H5 CHONDRITE B/C B
LAR 12047   355.4 L5 CHONDRITE A/B A/B
LAR 12048   363 H5 CHONDRITE B A
LAR 12105   35.5 L6 CHONDRITE A/B A
LAR 12107   12.4 H6 CHONDRITE B A
LAR 12108   10.1 H6 CHONDRITE A/B A
LAR 12109   11.7 H5 CHONDRITE Be A
LAR 12127   303.7 H5 CHONDRITE B/C B 18 16
LAR 12130   182.6 H5 CHONDRITE Be A
LAR 12131   260.2 H6 CHONDRITE Be A
LAR 12132   282.3 L6 CHONDRITE Be A/B
LAR 12133   201.5 L6 CHONDRITE A/Be A
LAR 12134   156.4 H5 CHONDRITE A/B A/B
LAR 12135   182.3 L6 CHONDRITE A/B A
LAR 12136   282.1 LL6 CHONDRITE A A/B
LAR 12137   104.3 H5 CHONDRITE B A/B
LAR 12140   40.3 H4 CHONDRITE A A 19 16
LAR 12150   113.8 H5 CHONDRITE B A
LAR 12151   41.5 H6 CHONDRITE A/B A
LAR 12152   52 L6 CHONDRITE A/B A
LAR 12153   51.6 H5 CHONDRITE B/C A
LAR 12155   51.1 H6 CHONDRITE B/C A
LAR 12157   34.3 L6 CHONDRITE A/B A
LAR 12158   23.1 H6 CHONDRITE B A
LAR 12159   47.3 L6 CHONDRITE B A
LAR 12190   78 H5 CHONDRITE B A
LAR 12191   37.6 H6 CHONDRITE B A
LAR 12192   36.6 H5 CHONDRITE B A/B
LAR 12193   29 H6 CHONDRITE B A
LAR 12194   19 H6 CHONDRITE A/B A
LAR 12197   23 L6 CHONDRITE A/B A
LAR 12198   20.4 H6 CHONDRITE A/Be B
LAR 12199   19.3 H6 CHONDRITE B A
LAR 12205   7.9 H6 CHONDRITE B/C A/B 19 17
LAR 12221   283.8 L5 CHONDRITE A/B A
LAR 12222   372.9 L5 CHONDRITE A/Be A 24 21
LAR 12223   378.3 H6 CHONDRITE A/Be A
LAR 12224   179.7 L5 CHONDRITE Be B
LAR 12226   118.7 LL5 CHONDRITE A/Be B
LAR 12227   67.6 LL5 CHONDRITE Ae A
LAR 12228   61.1 L6 CHONDRITE A/Be A
LAR 12229   63.7 H6 CHONDRITE Be A
LAR 12238   25.7 H5 CHONDRITE B A
LAR 12242   171.7 H6 CHONDRITE B B/C
LAR 12243   175.3 L5 CHONDRITE B A
LAR 12245   187.9 H6 CHONDRITE B/C A
LAR 12250   104.6 H6 CHONDRITE A/B A/B
LAR 12251   156.6 H6 CHONDRITE A/B B
LAR 12253   245 H6 CHONDRITE A/B A/B
LAR 12254   249.9 H6 CHONDRITE B A
LAR 12270   95.1 H6 CHONDRITE C C
LAR 12271   96.7 H5 CHONDRITE A/B A/B
LAR 12272   63.4 L5 CHONDRITE A A
LAR 12273   63.5 H6 CHONDRITE B/C A
LAR 12274   57 LL5 CHONDRITE B A
LAR 12275   42.2 H6 CHONDRITE C A
LAR 12276   39.8 L6 CHONDRITE C B/C
LAR 12277   67.8 H5 CHONDRITE A/B A/B
LAR 12278   32 L5 CHONDRITE B A/B
LAR 12280   29.6 H5 CHONDRITE B/C A
LAR 12281   21.8 L6 CHONDRITE A/B A/B
LAR 12282   33.4 L6 CHONDRITE B/C A/B
LAR 12284   9.6 H6 CHONDRITE B/C A/B 19 17
LAR 12285   16.2 H6 CHONDRITE B/C A
LAR 12286   43.4 L5 CHONDRITE B/C A/B
LAR 12287   17.1 H5 CHONDRITE B/C A/B
LAR 12290   21.9 H6 CHONDRITE B/C A
LAR 12291   15 H5 CHONDRITE B/C A/B
LAR 12292   12 H6 CHONDRITE B/C A
LAR 12293   11.1 H5 CHONDRITE A/B A
LAR 12294   6.3 L6 CHONDRITE B/C A
LAR 12295   4.4 H6 CHONDRITE B/C A
LAR 12296   2.2 L5 CHONDRITE B/C A
LAR 12297   5.7 L6 CHONDRITE B/C A/B
LAR 12298   8.2 L6 CHONDRITE B/C A/B
LAR 12299   4.9 L6 CHONDRITE B/C A
LAR 12311   9.2 H6 CHONDRITE B/C B
LAR 12312   14.5 L5 CHONDRITE B/C A
LAR 12313   10.5 L6 CHONDRITE A/B A
LAR 12314   4.1 L6 CHONDRITE B/C A
LAR 12315   12.9 L5 CHONDRITE B/C A
LAR 12316   0.5 H5 CHONDRITE B A
LAR 12317   2.3 H6 CHONDRITE B/C A
LAR 12318   8.9 H6 CHONDRITE B A/B
LAR 12319   12.3 L6 CHONDRITE B A/B
LAR 12322   48.2 L5 CHONDRITE A/B A/B
LAR 12323   41.7 L5 CHONDRITE A/B A/B
MIL 13009   707.2 L5 CHONDRITE B A/B
MIL 13010   1375.4 H6 CHONDRITE B B 19 17
MIL 13012   1167.7 L6 CHONDRITE B A
MIL 13014   1311.9 LL5 CHONDRITE C A 29 24
MIL 13015   778.4 L5 CHONDRITE B A
MIL 13016   137.4 H5 CHONDRITE A A
MIL 13017   232.5 L6 CHONDRITE A/Be A
MIL 13018   112 LL6 CHONDRITE A C 30 24
MIL 13020   1.8 LL6 CHONDRITE B/C A
MIL 13021   6.4 H6 CHONDRITE Ce A/B
MIL 13022   6.9 H5 CHONDRITE A A/B
MIL 13023   3.5 LL5 CHONDRITE A/B B 28 22
MIL 13024   11.5 LL5 CHONDRITE A/B B 28 22
MIL 13025   5.3 L6 CHONDRITE A A/B
MIL 13026   1.1 L6 CHONDRITE C B
MIL 13027   0.8 H6 CHONDRITE B A
MIL 13028   2.9 L6 CHONDRITE B/C B
MIL 13029   1.9 H6 CHONDRITE C A/B
MIL 13030   5.6 H6 CHONDRITE B/C A/B
MIL 13031   1.9 H6 CHONDRITE B/C A
MIL 13033   1.6 L5 CHONDRITE B/C A
MIL 13035   1.9 H6 CHONDRITE B/C A
MIL 13036   6.7 H5 CHONDRITE B/C A
MIL 13038   5.5 H6 CHONDRITE B/C A
MIL 13040   0.4 LL6 CHONDRITE B A
MIL 13041   6.3 L6 CHONDRITE B/C A/B
MIL 13042   1.3 H5 CHONDRITE B/C A
MIL 13044   6.6 H5 CHONDRITE B/C A
MIL 13045   2.5 LL5 CHONDRITE B/C A
MIL 13046   1.8 L6 CHONDRITE B/C A
MIL 13047   5.3 H5 CHONDRITE B/C A/B
MIL 13048   3.8 L5 CHONDRITE A/B A/B
MIL 13049   9 L5 CHONDRITE B A
MIL 13060   5.8 LL5 CHONDRITE A/B A 28 22
MIL 13061   8.2 H6 CHONDRITE B/C B/C
MIL 13064   1.5 L6 CHONDRITE B A
MIL 13066   1 L6 CHONDRITE B A/B
MIL 13068   12.3 H6 CHONDRITE A/B A/B
MIL 13069   6.3 L6 CHONDRITE B/C A
MIL 13070   5.8 H6 CHONDRITE Ce B
MIL 13071   12.3 H6 CHONDRITE C A
MIL 13072   16.6 H5 CHONDRITE C B/C
MIL 13073   46.2 H6 CHONDRITE B/C A/B
MIL 13074   30.2 L6 CHONDRITE Be B
MIL 13075   96.2 L5 CHONDRITE Be B/C
MIL 13076   41.1 H6 CHONDRITE Ce A/B
MIL 13080   527.5 LL5 CHONDRITE A/Be B/C 30 24
MIL 13081   116.5 H5 CHONDRITE C A/B
MIL 13082   215.7 H5 CHONDRITE B/C A/B
MIL 13083   411.5 H6 CHONDRITE Be B
MIL 13084   211.8 L6 CHONDRITE B/C A
MIL 13085   223.7 L6 CHONDRITE Be A/B
MIL 13086   225.4 LL5 CHONDRITE A/B A
MIL 13087   258 H6 CHONDRITE A/Be B
MIL 13088   144.5 L5 CHONDRITE A/B B/C
MIL 13089   128.3 L6 CHONDRITE B/Ce A
MIL 13090   93.9 L6 CHONDRITE B/C A/B
MIL 13091   75.8 H5 CHONDRITE B A
MIL 13092   86.4 L6 CHONDRITE C A
MIL 13093   96.1 L5 CHONDRITE A A
MIL 13094   156.6 L6 CHONDRITE B A/B
MIL 13095   60.2 L6 CHONDRITE Ce A
MIL 13096   139.8 L6 CHONDRITE A B
MIL 13097   76.1 H5 CHONDRITE A A
MIL 13098   70.7 L5 CHONDRITE B B
MIL 13099   115.8 L6 CHONDRITE A/B A
MIL 13110   32.3 H5 CHONDRITE Ce A/B
MIL 13111   75.7 H5 CHONDRITE C A
MIL 13113   139.9 L6 CHONDRITE Be A
MIL 13114   14.4 L6 CHONDRITE A/B B
MIL 13115   45 L5 CHONDRITE A/Be A/B
MIL 13120   2.3 LL5 CHONDRITE A/B A 28 22
MIL 13121   4.1 H5 CHONDRITE A/B A
MIL 13122   0.9 L6 CHONDRITE B A
MIL 13123   4.5 H6 CHONDRITE B/C A/B
MIL 13125   12.3 H5 CHONDRITE B/C A
MIL 13126   1.6 L4 CHONDRITE B A 24 19
MIL 13127   1.9 H6 CHONDRITE B/C A
MIL 13128   0.4 L6 CHONDRITE B A
MIL 13129   1.6 LL5 CHONDRITE B A
MIL 13200   4.7 LL5 CHONDRITE A/B A/B
MIL 13201   6.1 H6 CHONDRITE Ce A
MIL 13203   3.4 LL6 CHONDRITE B A/B
MIL 13205   6.9 L6 CHONDRITE C A
MIL 13206   15.5 H6 CHONDRITE B/C A
MIL 13207   14.5 L6 CHONDRITE B A/B
MIL 13208   8.4 L6 CHONDRITE Be A
MIL 13209   13.2 H6 CHONDRITE C A
MIL 13290   3.1 H6 CHONDRITE C A/B
MIL 13291   3.2 L5 CHONDRITE C B/C
MIL 13292   3.4 H6 CHONDRITE Ce A/B
MIL 13293   2.6 H6 CHONDRITE C B
MIL 13294   4.6 H6 CHONDRITE Ce A/B
MIL 13295   8 LL4 CHONDRITE B A 28 22
MIL 13296   3.4 LL5 CHONDRITE B C 29 24
MIL 13297   2.1 LL6 CHONDRITE C B/C
MIL 13298   2.8 H5 CHONDRITE Ce B
MIL 13299   6.6 H6 CHONDRITE C B/C
MIL 13300   6 H6 CHONDRITE B/C A
MIL 13301   4.7 L5 CHONDRITE B/C A
MIL 13303   2.1 LL5 CHONDRITE B A
MIL 13304   1.5 LL5 CHONDRITE B/C A
MIL 13305   1.2 LL5 CHONDRITE B/C A
MIL 13306   0.7 L6 CHONDRITE B A
MIL 13307   8.2 H6 CHONDRITE B/C A
MIL 13308   18.3 L6 CHONDRITE B/C A
MIL 13309   23.3 LL6 CHONDRITE B/C A

Classification of the ordinary chondrites in Table 1 & 2 was done by Energy Dispersive Spectroscopic (EDS) methods using a Scanning Electron Microscope (SEM). This can include the analysis of several olivine and pyroxene grains to determine the approximate Fayalite and Ferrosilite values of the silicates, grouping them into H, L or LL chondrites. Petrologic types are determined by optical microscopy and are assigned based on the distinctiveness of chondrule boundaries on broken surfaces of a 1-3 g chip. While this technique is suitable for general characterization and delineation of equilibrated ordinary chondrites, those undertaking detailed study of any meteorite classified by optical methods alone should use caution. It is recommended that a polished thin section be requested to accompany any chip and appropriate steps for a more detailed characterization should be undertaken by the user. (Cari Corrigan, Smithsonian Institution)