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   Antarctic Meteorite Newsletter, Volume 30, No. 2 - August 2007
Volume 30, No. 2 - August 2006
Petrographic Descriptions   (Select a sample)


 
DNG 06004
GRA 06100
GRA 06101
GRA 06128
GRA 06129
GRA 06130
GRA 06131
GRA 06157
GRA 06172
GRA 06173
GRA 06189
LAP 04462
LAP 04475
LAP 04514
LAP 04516
LAP 04521
LAP 04527
LAP 04552
LAP 04565
LAP 04572
LAP 04581
LAP 04588
LAP 04592
LAP 04612
LAP 04614
LAP 04672
LAP 04675
LAP 04680
LAP 04689
LAP 04741
LAP 04745
LAP 04760
LAP 04796
LAP 04807
LAP 04809
LAP 04824
LAR 04364
LAR 04369
LAR 04380
LAR 04382
LAR 06319
LAR 06621
LAR 06638
LAR 06870
LAR 06875
LAR 06876
LAR 06877
MIL 05069
MIL 05147
RBT 04143
RBT 04251
RBT 04255
SCO 06040
SCO 06041
TYR 05181
 


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Sample No.: LAR 04380
Location: Larkman Nunatak
Field No.: 15593
Dimensions (cm):   2.75 x 2.5 x 1.5
Weight (g): 13.986
Meteorite Type:

L3 Chondrite



Macroscopic Description: Kathleen McBride
The exterior has 80% thin black fusion crust. The interior is a dark brown matrix with high metal content and contains <3 mm sized chondrules of various colors.

 

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section exhibits numerous large, well-defined chondrules (up to 3 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. The meteorite is highly weathered. Silicates are unequilibrated; olivines range from Fa17-31, with most grains Fa30-31, and pyroxenes from Fs6-27. The meteorite is an L3 chondrite (estimated subtype 3.9).



Thin Section Images

Plane-Polarized
Light LAR 04380
Cross Polarized Light
LAR 04380
LAR04380 - Plane-Polarized Light LAR04380 - Cross Polarized Light



Lab Images

LAR  04380