Etna DOC affects the maturation of the grapes and therefore there is a significant difference between the harvest period of the Etna and the rest of the Sicily areas. The soil is volcanic and very rich in minerals. It is formed by the disintegration of one or several types of lava of different ages and eruptive materials such as lava, ash and sand. Containing all these particles, the crops cultivated on Etna soil benefit from nutrients like iron, copper, phosphorus, magnesium and others. Etna DOC Etna is a "Denominazione di origine controllata" (DOC) for wine from the Etna region in Italy. Etna
Italian cruiser Etna which time she made a visit to Sydney, Australia. She returned home in 1902 and was disarmed; she was then commissioned as the flagship of the Superior Torpedo-Boat Command in 1904. In 1907, "Etna" was converted into a training cruiser for naval cadets. "Etna" visited the United States in September 1909 for the Hudson-Fulton Celebration in New York City, which also included ships from the German, British, and French fleets, among others, in addition to the hosting US Navy. On this occasion, she was joined by the cruiser . "Etna" saw limited action during the Italo-Turkish War in 1911–12. At