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   Antarctic Meteorite Newsletter, Volume 30, No. 1 - February 2007
Petrographic Descriptions   (Select a sample)


 
LAP 04751
LAP 04757
LAP 04771
 
LAP 04773
LAP 04775
LAP 04779
 
MCY 05239
MIL 05010
MIL 05013
 
MIL 05041
MIL 05062
MIL 05076
 
MIL 05086
MIL 05155
MIL 05165
 
PRA 04401
PRA 04402
RBT 04260
 
RBT 04261
RBT 04262


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Sample No.: MIL 05155
Location: Miller Range
Field No.: 18048
Dimensions (cm):   5.0x4.0x2.0
Weight (g): 53.508
Meteorite Type: L Chondrite (Impact Melt)


Macroscopic Description: Kathleen McBride
Brown/black patches of fusion are on <5% of this meteorite's exterior. The interior matrix is coarse grained and tan to light green in color with visible olivine crystals.


Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The meteorite is paired with the MIL 05029 pairing group, the original description of which was: The meteorites consist of large (up to 4 mm) orthopyroxene grains with interstitial feldspar with both of these phases poikilitically enclosing 50-200 µm olivine grains. Minor metal and sulfide are present, with sulfide occasionally rimming metal. Silicates (olivine of Fa25, orthopyroxene of Fs21Wo4, plagioclase of An16Or3) are compositionally within the range of L chondrites. The meteorites are likely L ordinary chondrite impact melt rocks and similar in some respects to PAT 91501 (Mittlefehldt and Lindstrom, MAPS, 36, 439).



Thin Section Images

Cross-Polarized
Light MIL 05155
Plane-Polarized
Light MIL 05155
MIL 05155 - Cross-Polarized Light MIL 05155 - Plane-Polarized Light



Lab Images

MIL 05155
MIL 05155