Gypsum Selenite Fish Tail Twinning
Gypsum selenite with fish tail twinning is a fascinating mineral formation known for its distinctive crystal structure. Selenite, a variety of gypsum, is characterized by its transparent, often clear crystals that can form in intricate patterns. The term "fish tail twinning" refers to a specific crystal habit where the twin crystals exhibit a shape that resembles the tail of a fish, creating a unique and visually appealing appearance. This twinning occurs when two gypsum crystals grow together in a mirrored arrangement, resulting in a fan-like or forked structure. These formations are prized by mineral collectors and enthusiasts for their delicate beauty and the complexity of their crystal geometry.
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