Obsidian is molten lava that cooled so quickly it had no time to crystallize. Obsidian is a stone without boundaries or limitations. As a result, it works extremely fast and with great power. Its truth-enhancing, reflective qualities are merciless in exposing flaws, weaknesses and blockages. Nothing can be hidden from Obsidian. Pointing out how to ameliorate all destructive and disempowering conditions, Obsidian impels us to grow and lends solid support while we do so.
Obsidian is a strongly protective stone, forming a shield against negativity. It is helpful for highly sensitive people. It blocks psychic attack and removes negative spiritual influences.
A large piece of Obsidian can be extremely efficient at blocking geopathic stress or soaking up environmental pollution.