An igneous rock that contains mostly pyroxene and olivine has ?

Ultrabasic rocks like mafic rocks

Explanation:

Usually, have 45% of silica and mostly are mafic rocks contain mostly minerals like pyroxene and olivines example of peridotite, these minerals make up 90% of the volume of igneous rocks and thus are easy to identify. Being rich in iron and magnesium and thus contain abundant calcium-rich feldspar thus they being dark o black in color.  The presence of this pyroxene and olivine has also found in extraterrestrial rocks like the lunar rocks and often have been seen in a combination with minerals like hornblende.

True but only in the south coastal areas during september and early october.