A bit unassuming to look at in certain lighting, this is a holographic charcoal piece with black and holographic glitter layers in clear acrylic medium. Because of of the layering, there's a bit of a three dimensional look to it. It's also slightly craggy on the surface like a rock would be. Holo effect is more subtle in low lighting, and very flashy in bright light and sunlight. If there was an actual granite like this, then I would insist that all bathroom and kitchen surfaces in my house be made from it.
Acrylic medium and glitter on cradled wood board, no frame necessary, ready to hang. I ship on Fridays and internationally.