Rocks

  I saw some very intriguing rocks while wandering around Cuverville Island.  This one in particular caught my eye, because it looked just the color of amber...   But amber is fossilized tree sap, and what would something like *that* be doing on Antarctica?  Anyway, I took a picture of it, and if anyone with more geological knowledge than I would care to identify it and write to me, I'll be more than happy to post the correct term for whatever this really is.
 

  The wispy bits are moulted penguin feathers
 

Here's another interesting rock that caught my eye on Cuverville Island:
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A long streak of crumbly brick-colored rock on Livingston Island

 

This is probably just plain old granite, but I thought it was neat looking anyway.  :)