Lithophyse (Ref231) Esterel massif France.

The lithophyses of the Esterel massif, in the Var region of France, often take the form of geodes due to complex geological processes spanning millions of years. Originally, this massif was the scene of intense volcanic activity. Molten magma rising near the surface encountered reservoirs of seawater, triggering hydrothermal explosions. These propelled the magma to the surface, where it suddenly cooled on contact with the water, forming cavities in the volcanic rock. Over time, these cavities gradually filled with minerals dissolved in seawater, such as calcite, quartz and iron oxides. These minerals were deposited on the inner walls of the cavities, creating strata of crystals. The geodes were then shaped by erosion processes, exposing them to the surface as the surrounding rocks crumbled away.

Stone dimensions: L:98mm x l:59mm - Weight: 210g.