Mid-ocean ridge basalt (MORB) is a unique volcanic rock formed at divergent tectonic plate boundaries, prized for its striking textures and durability. Over the years, artists and geologists have collaborated to create breathtaking outdoor sculptures using this material. Here are some of the most famous MORB sculptures around the world:

1. "Lava Flow" by James Turrell (Iceland) – This monumental installation in Reykjavik uses basalt columns to mimic the natural hexagonal formations found in volcanic regions, blending art with geology.

2. "Pillars of the Deep" (Hawaii, USA) – Located in Volcanoes National Park, this sculpture series captures the raw power of MORB, with towering basalt structures resembling underwater ridge formations.

3. "Rift" by Olafur Eliasson (Norway) – A stunning coastal installation featuring polished basalt blocks, symbolizing the connection between land and sea at mid-ocean ridges.

4. "Basalt Gates" (Azores, Portugal) – A series of arched sculptures made from local MORB, celebrating the archipelago’s volcanic origins.

5. "Subduction" (New Zealand) – A dynamic sculpture in Wellington’s botanical gardens, using stacked basalt to represent tectonic forces.

These sculptures not only highlight the artistic potential of MORB but also educate the public about Earth’s geological processes. Their rugged beauty makes them must-see landmarks for art and science enthusiasts alike.