Black Obsidian - Transforms and protects, repelling negativity. It opens the root chakra and casts energy that mirrors your soul. Grounding and balancing during times of change. Aids in letting go of the past and in habit-breaking.
Cubes are a symbol of stability and permanence, of geometric perfection. It represents the final stage of a cycle of immobility, it can be seen as the truth, because it looks the same from any perspective, it is commonly thought of as the counterpart of the sphere.
1" square