Zektzerite is an extremely rare mineral with the chemical formula LiNaZrSi₆O₁₅. It was first discovered in Washington State, USA. This gemstone is valued mainly by collectors due to its rarity rather than widespread jewelry use. It typically forms in granite pegmatites and is often found in pale blue or colorless crystals. Zektzerite has a vitreous luster and is transparent to translucent. Due to its softness, it is not commonly used in commercial jewelry.