Obsidian

Medicinal use: strengthens digestive organs, detoxifies the body, reduces pain in arthritis and joint problems, treats inflammation caused by bacteria, natural antibiotic.
Uses: confidence, divination, protection, grounding, calm
Properties: a projective stone, assigned to the planet Saturn and the element of fire.
It takes you into your innermost self and brings to the surface the truth and all the unresolved contradictions that have been relegated to the subconscious. It is a very strong protective stone against magical attacks, evil and all negativity. It has a dual character: it protects the wearer from bad influences, but it can also help bad people in their mischief. It gives faith in one's own strength and abilities, but it can also cause depression. It helps to get rid of external influences, can break all blockages, activates logical thinking. This stone is suitable to have with you during exams and important decisions. It should be worn with a regulating crystal for its powerful and dual effects.
Colors: black, brown, red, golden
Location: USA, Mexico
Technical description: felsic, volcanic igneous rock. The natural volcanic obsidian glass is created by the rapid cooling of lava, has a strong luster and fracture, and is suitable for making tools due to its fissibility. Typical obsidian is black, red and brown shades are formed by the presence of hematite, and the so-called flake obsidian consists of spherical aggregates with needle-like crystals.