Black obsidian is formed by the crystallization of lava.
It manages to absorb our negative energies and at the same time charge us with renewed and positive energies, as it assimilates, retains and transmits energy.
Its use is ideal for devitalized and dull glasses and skin as it returns energy, shining a lighter, hydrated, firmer and nourished skin.
They assimilate, retain and transmit energy. For this reason they can be very beneficial to us as they manage to absorb our negative energies and charge us at the same time with renewed and positive energies.