Icelandic volcanoes obsidian at hrafntinnuhryggur a shower approaches krafla from the south the lava cap of a tuya at Rauðfossafjöll.

Obsidian Lichen-covered obsidian spherultic flow-banded obsidian a fault in colourful banded obsidian

Other photos stickle tarn, langdale lancaster canal mountain avens at krafla

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