Obsidian pendant with star Metatron. Size: 3.2 cm Mineral: Obsidian black Color: Black with gold symbol Metal: nickel-plated gold Note: By nature the product can vary slightly the tones and veins. Properties: Obsidian is a shield against negativity. Relieves tensions and blockages. Metraton is the supreme archangel of all angels in combination with obsidian, you can program it for a protective element.