Geschichte: Lanzarote is where black cliffs and beaches meet the blue sea and barren lava flows never end. And as an earth science student, what better to take home than half a suitcase of rocks to remember the amazing panorama forever?! Well, actually, not that many rocks made it home: it turned out that I had to buy them instead of being able to collect them from the field myself - what's the fun in that?
Geologie: The green part of the rock is a peridotite – a rock found in Earth's mantle. The black part is a basalt – a volcanic rock that forms when lava solidifies. How did these two end up together? Magma forms in the mantle under Lanzarote and drags along pieces of peridotite when it rises to the surface. When the magma erupts, it cools and solidifies as basalt around the peridotite chunk.