|
+ Text Only Version + Contact NASA |
|
Petrographic Descriptions (Select a sample)
| Sample No.: | LAP 031346 |
| Location: | LaPaz Ice Field |
| Field No.: | 16971 |
| Dimensions (cm): | 2.0x1.25x1.25 |
| Weight (g): | 5.403 |
| Meteorite Type: | L3 Chondrite |
Macroscopic Description: Kathleen McBride
The exterior has thick dull black fusion crust. The matrix is a rusty black with moderate amounts of metal. Light and rusty chondrules are visible.
Thin Section (,2) Description: Valerie Reynolds and Tim McCoy
The section exhibits numerous well-defined chondrules (up to 2.5 mm) in a black matrix of fine-grained silicates, metal and troilite. Polysynthetically twinned pyroxene is abundant and a few chondrules contain glass. The meteorite is moderately weathered. Silicates are unequilibrated; olivines range from Fa5-40 and pyroxenes from Fs4-16. The meteorite is an L3 chondrite and may be of low subtype (estimated subtype 3.3).
Thin Section Images
| Cross-Polarized Light | Plane-Polarized Light |
|---|---|
 |
 |
Lab Images
 |
|
This web site has been designed for use with: Microsoft Explorer version 6.0 and greater Firefox version 1.5 and greater Netscape Navigator version 8.0 and greater Safari version 1.3.1 and greater For access to the graphical presentation version of the web site please download and install one of the above browsers. |
||
|
Nasa Privacy Policy and Important Notices
|
||
|