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Hackmanite

Hackmanite is a violet to pink variety of sodalite known for its tenebrescence, changing color under UV light. It belongs to the silicate mineral group and is found in igneous rocks such as nepheline syenite. Spiritually, it is often associated with intuition, clarity, and truth. Chemically, its formula is Na₈Al₆Si₆O₂₄(Cl,S)₂.