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.
When it has stopped moving, lava solidifies to form igneous rock. The term lava flow is commonly shortened to lava. Although lava can be up to 100,000 times more viscous than water, lava can flow great distances before cooling and solidifying because of its thixotropic and shear thinning properties. Explosive eruptions produce a mixture of volcanic ash and other fragments called tephra, rather than lava flows.