Ragna Róbertsdóttir: Patterns of Energy 1 + 2The multi disciplinary practice of Icelandic artist Ragna Rbertsdttir explores notions of identity, time and materiality as well as natural and architectural histories. Best known for her sculptures and installations, she often incorporates elements typical of the Icelandic environment into her works, such as lava rocks, salt, turf and clay. Patters of Energy 1 and Patterns of Energy 2 are such works, printed from a block of lava stone, thus engaging