I contoured and polished the sides of this specimen to capture that shape of a candle flame.  I purposefully left section of the rock unpolished to show the contrast between the natural rough rock and the striking colors of the polished faces.

Rock type: Metamorphic basalt

Based on the green color, this rock originated from oceanic basalt that was metamorphosed.  

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