yes they can actually
well lava and magma are pretty much the same thing but the way minerals form from lava and magma is that when a volcano erupts the magma turns to lava and lava is just magma that cool-es faster...
igneous rock! if this is a question for a worksheet that's for a grade you are a cheater!
Granite is formed from cooling magma.
When magma gathers and cools underground, it is called a plutonic event.