Lava stone is also known as basalt and is what left behind after a volcanic eruption.
Most lava stone is colored in shades of grey and black, but basaltic cinders are sometimes red, taking their hue from oxidized iron minerals present in the lava flow.
The benefits of Lava stone is has grounding benefits which can assist to calm and balance your emotions. Its also know to be very useful when solving problems. It will help dispel fear, anger and negative energy.
Meaning is for courage and strength, to follow your dreams and aspirations.
Lava stone is a base chakra
Astrological is Cancer, Taurus.