Comparison of Mars and Earth Glassies
Picture taken by Opportunity on Day 19

For size context, each of the pebbly grains below the larger
round spherical and other rocks
is about 100 to 200 microns in diameter, about the size of a sugar grain. So the
long, unidentified
filament laying on those little grains is much smaller in diameter. Opportunity
Microscopic Imager Non-linearized
Full frame EDR acquired on Sol 19 of Opportunity's mission to Meridiani Planum
at approximately
at approximately 11:25:52 Mars local solar time, Microscopic Imager dust cover
commanded
to be OPEN. Image credit: NASA/JPL/Cornell/USGS
The following pictures were taken of material that came from the Frass Meteorite.




Additional pictures taken by Opportunity located at NASA:
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/100/1M137060905EFF2002P2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/091/1M136268524EFF1500P2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/084/1M135640924EFF1300P2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/080/1M135292576EFF10CGP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/080/1M135286027EFF10CGP2956M2M1.JPG
Midway down the left side, look for fossil with "rings."
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/080/1M135284988EFF10CGP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/080/1M135284483EFF10CGP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/067/1M134133358EFF08AQP2939M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/069/1M134309003EFF08AYP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/069/1M134315240EFF08AYP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/069/1M134320109EFF08AYP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/069/1M134320732EFF08AYP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/069/1M134321132EFF08AYP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/068/1M134219772EFF08AQP2956M2M1.JPG
on far right side, near center, glassy appears to lay on top of two "rocks"
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/067/1M134133442EFF08AQP2939M2M1.JPG
this rock appears to have "lichens" growing all over it
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/065/1M133955529EFF08AQP2906M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/065/1M133955963EFF08AQP2936M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/1/m/065/1M133958465EFF08AQP2956M2M1.JPG
And from Spirit
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/160/2M140565777EFF6900P2906M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/158/2M140401551EFF6800P2977M2M1.JPG
check this one out - look on the right side
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/141/2M138892286EFF54CAP2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/110/2M136126464EFF3400P2957M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/105/2M135687606EFF3000P2956M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/099/2M135152866EFF2700P2959M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/085/2M133916997EFF2232P2979M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/082/2M133650579EFF2232P2979M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/080/2M133463409EFF2232P2979M2M1.JPG
http://marsrovers.jpl.nasa.gov/gallery/all/2/m/079/2M133382830EFF2232P2957M2M1.JPG