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.
The dragon blood tree is the most famous and distinctive plant of the island of Socotra. It has a unique and strange appearance, described as upturned, densely packed crown having the shape of an uprightly held umbrella. This evergreen species is named after its dark red resin, which is known as dragon's blood.he local inhabitants of the city in the Socotra Island use the dragon's blood resin as a cure-all. They use it in general wound healing, as a coagulant, cure for diarrhea, for dysentery diseases, for lowering fevers.