17 March 2016

A GIGAmacro view of the front and back of an anorthosite cobble

Posted by Callan

Here are two views of a single anorthosite cobble, collected in the Adirondack Mountains of upstate New York:

Raw, natural surface:
Link

Slabbed and polished surface:
Link

As you zoom in and explore these GIGAmacro images, see if you can find the delicate little “necklaces” (reaction rims) of garnet wrapping around the few isolated pyroxenes!