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Weight and size of gemstones may still very slightly due to difference in calibration of weighing and measuring scales.)

This video is taken under LED Ring Light

Hackmanite is an extraordinary variety of the mineral sodalite, renowned for its rare and unique ability to change color under different lighting conditions—a phenomenon known as tenebrescence. In its natural form, Hackmanite often displays hues ranging from soft lavender or pink to deep royal blue. However, when exposed to sunlight or ultraviolet (UV) light, it can undergo a striking transformation, shifting to more vibrant or even different colors. This color change can be reversed when the stone is placed back in the dark, making it a highly prized gemstone for collectors and enthusiasts alike.