Jet is a striking, deep black mineraloid formed from fossilised wood under extreme pressure over millions of years. Smooth and lightweight, it can be polished to a high shine, making it popular in jewellery and ornamentation. Historically, jet was worn for protection and mourning, believed to absorb negative energy. Metaphysically, it is said to encourage grounding, emotional release, and clarity, helping to relieve stress and anxiety. A timeless choice for both collectors and spiritual practitioners seeking calm and balance.