Not necessarily, though they can be. A lacolith can be composed of almost any intrusive igneous rock.
Aruba
Diorite is an igneous rock, and does not have a cleavage , but a break between two sections of diorite could be best described as 'uneven'
dike
Diorite can sometimes be black, grey or even white. :)
The word "diorite" is a noun. An example of a sentence containing the word would be: Diorite was an ideal material for the construction of axes.
black diorite
auruba
Diorite is not an element it is a rock type made up of several minerals. Therefore the term metallic or non-metallic can not be applied to it.
The Caribbean island made up of lava, quartz diorite, and limestone is Saba. Saba is a volcanic island formed by the eruption of an underwater volcano and its terrain consists of a mix of these rock types.
Aruba
The density of diorite ranges from 2.8 to 3 g/cm³.
Diorite is an intrusive igneous rock.