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.
Black Dragon is a variety of Coleus which is a member of the Solenostemon family. Its botanical name is Solenostemon scutellarioides 'Black Dragon' .A type of Ornamental, it mainly grows as an Annual plant-which means it typically only grows best for a single growing season.Black Dragon is known for growing to a height of approximately 1.24 feet (that's 38.0 cm in metric) with a ground cover-like habit.Black Dragon Coleus is normally quite a low maintenance plant and is normally very easy to grow-great for beginner gardeners!lack Dragon likes a position of partial sun and remember to water often. Black Dragon is generally regarded as a tender plant, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.