Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.This magma can be derived from partial melts of pre-existing rocks in either a planet's mantle or crust.xtrusive igneous rocks, also known as volcanic rocks, are formed at the crust's surface as a result of the partial melting of rocks within the mantle and crust. Extrusive igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth's surface.
A dragonfruit is a cactus of the genus Hylocereus. The commonly known species of dragonfruit, which is red (there are several colors), is Hylocereus undatus.ragon fruit can be called Hylocereus cacti, pitaya, pitahaya, fire dragon fruit, dragon pearl fruit, green dragon, or strawberry pear.
Dragon fruit is high in vitamin C, calcium, phosphorus, fiber, and antioxidants. While the flesh of dragon fruit does not have any fat, the seeds and center contain some healthy monounsaturated fats and protein. Dragon fruits are also a good source of dietary fiber (about 10g per 100g of dragon fruit).hoosing Dragon Fruit. To best enjoy dragon fruitâs taste, choose a dragon fruit that has even-colored skin; if its leaves are very dry or brown or its skin is filled with blotches of color, then it is overripe.