5 A Day: Fruit of the Month: Persimmons. Persimmons origins go back to ancient China. Fate intervened in the 1880's when a United States Commander brought back a native Japanese persimmon variety to Washington, D.C. Now, persimmons are grown in California where hundreds of different varieties flourish. A Day: Fruit of the Month: Persimmons. Persimmons origins go back to ancient China. Fate intervened in the 1880's when a United States Commander brought back a native Japanese persimmon variety to Washington, D.C. Now, persimmons are grown in California where hundreds of different varieties flourish.
As the super hot magma cools, it solidifies to form a rock and that rock is called igneous rock. When most people think of igneous rock they vision a volcano erupting pumice and lava. Igneous rocks form directly by crystallization from materials from a magma melt.
1 Lava is molten rock expelled by a volcano during an eruption. 2  A lava flow is a (moving) outpouring of lava, which is created during a non-explosive effusive eruption. 3  When it has stopped moving, lava solidifies to form igneous rock.The composition of a lava determines its behavior more than the temperature of its eruption. The viscosity of lava is important because it determines how the lava will behave. Island-arc magmas are generated in metosomatically altered mantle.hen it has stopped moving, lava solidifies to form igneous rock. The composition of a lava determines its behavior more than the temperature of its eruption. The viscosity of lava is important because it determines how the lava will behave.