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.
The explorer, Marco Polo (1254-1324), is believed to have seen ice-creams being made during his trip to China and introduced them to Italy. Ice Cream sundaes were invented when it became illegal to sell ice-cream sodas on a Sunday in the American town of Evanston during the late 19th century.