Lithophyse (Ref230) Esterel massif France.

The lithophyses of the Esterel massif, located in the Var region of France, often take the form of geodes due to complex geological processes spanning millions of years. Initially, the Esterel massif experienced intense volcanic activity. When molten magma reached near the surface, it encountered seawater reservoirs, triggering hydrothermal explosions. These explosions projected magma to the surface, where it rapidly cooled on contact with water, forming cavities in the volcanic rock.

Over time, these cavities filled with minerals dissolved in seawater, such as calcite, quartz and iron oxides. These minerals were deposited on the inner walls of the cavities, forming layers of crystals. Gradually, erosion processes sculpted the geodes, exposing them to the surface as the surrounding rocks crumbled away.

Stone dimensions: L:86mm x l:82mm - Weight: 355g.