Igneous Rocks are formed by crystallization from a liquid, or magma. They include two types. Magma is a mixture of liquid rock, crystals, and gas. Characterized by a wide range of chemical compositions, with high temperature, and properties of a liquid.
One of the earliest forerunners of modern ice cream was a recipe brought back to Italy from China by Marco Polo. The recipe was very like what we would call sherbet. From there, it is thought that Catherine de Medici brought the dessert to France when she married King Henry II in 1533.
It was in the eighteenth century that ice cream was introduced to Lyon by an Italian, Spreafico. The modern culinary reputation of Lyon was truly born with the publication of a poem by Joseph de Berchoux, glorifying the local cuisine. He was born at Roanne in 1760, and moved to Lyon in 1770.