I am calling this metamorphic metamorphosis because to me it looks like the rock is still in the process of changing with the lighter green color breaking into cracks and growing out like it’s trying to take over the original host rock.

Rock type: Metamorphic basalt

The contrast between the dark green host rock and the light green rock that is filling in the cracks is amazing, especially with the bright white quartz accents.  This rock paints a dynamic picture of geology with multiple changes happening over time.  The original oceanic basalt was heated up, melted and converted into a deep green speckled rock.  Then the rock was cracked and broken and invaded by new minerals that filled in even the smallest defects in the host rock.  

Chemical composition: The exact composition of this rock is not known.  The origin is an ultra mafic oceanic basalt.