| Why this rock
is probably not a meteorite:
The dark "coating" is much to thick for a meteorite fusion crust. The
finder said that a sharp edge would scratch glass. That means it
contains quartz, and quartz doesn't occur in meteorites.
|What is it?
Hard to say. I'd like to see this one
Note added later: A correspondant from England said: "We
see a lot like this in Southern England on the chalk downs. I even
have a piece myself - Somewhere in the dozens of rock boxes I've
sharp edges are 'lethal' and can cut up raw meat
very very easy." Thanks, Phill.
Göran from Sweden says the same thing - It's flint nodules
(dark) in a piece of chalk (light).