Fluorite Penetration Twin, Xianghuapu Mine, Hunan

Green Fluorite stands out with its unique twin crystal formation, showcasing a stunning geometric structure. Sourced from the renowned Xianghuapu mines in Hunan Province, China, this rare mineral is perfect for collectors and enthusiasts seeking a truly exceptional specimen. The Xianghuapu Mine is well-known for producing fluorite specimens with excellent clarity and vibrant colors, making it a notable locality among mineralogists and collectors alike.

Fluorite crystallizes in the isometric (cubic) crystal system, and this specimen beautifully illustrates a penetration twin, where two cubic fluorite crystals have grown into one another. The piece exhibits a pleasing green hue with good transparency, allowing light to pass through and enhancing its geometric form. Fluorite has a Mohs hardness of 4 and a vitreous luster, which contributes to its attractive glass-like appearance. Its chemical formula is CaF₂, reflecting its composition as calcium fluoride.

This specimen's distinct twin formation and classic locality add to its collector value, offering both aesthetic appeal and geological interest. It serves as an excellent display piece for any crystal collection or mineral cabinet. To preserve its surface and luster, it is advisable to keep the specimen away from prolonged exposure to direct sunlight and to handle it gently, as fluorite can be brittle and prone to cleavage.

Xianghuapu Mine, Hunan, China — source of apple-green and blue fluorite.