Aa

Aa is a volcanic rock, known for its rugged, clinkery surface and sharp edges. Found primarily in Hawaii, Aa forms from lava flows that cool quickly, creating a jagged, rough texture that contrasts starkly with the smoother Pahoehoe lava. Its unique appearance is both captivating and intimidating, resembling a hardened river of molten rock. Walking on Aa is a challenge, as its sharp, fragmented pieces can easily tear through shoes. Despite its harshness, Aa offers a fascinating glimpse into the dynamic processes of volcanic activity, showcasing nature's raw, untamed power in a striking and unforgettable form.