Is strange rock from UFO or just a piece of poppycock?

[snopes]

The story Philip Lipson and Charlette LeFevre have been researching for years has almost all the elements of a made-for-TV movie.

Lipson and LeFevre believe that 60 years ago a plane that crashed in Kelso contained slag from a UFO. They've tracked down newspaper stories and testimony, and gathered the clues at their museum.

But it's the black chunk of rock they keep locked in a glass case that may be their best clue, and a scientist may test the rock.

http://seattlepi.nwsource.com/local/312713_ufo23.html

[Singing in the Drizzle]

My money is on a meteorite.

[Not_Done_Living]

Nah man,

it's the alien version of "green ice" falling from the sky.

I could believe that 6 fully staffed ships flying 1 million light years away from home would generate abbout 20 tons of ..waste.... :o
can't you?

[Mycroft]

This reminds me of an incident which happened during the war. A large fragment of German bomb was analysed to determine what it was made of, and they were amazed to find that the metalurgists were unable to identify over 90% of an object, however when somebody else saw it the correctly identified as a piece of coal, selected in error from the debris, and of course the metalurgists had not analysed it for carbon.