Bifacial, rare gray cubic fluorite, UV red Crystals on matrix - Height: 118 mm - Width: 102 mm- 349 g

Gray cubic fluorite is a fascinating mineral variant where fluorite crystals exhibit their characteristic isometric cubic habit with an unusual gray coloration. Fluorite commonly forms cubes with well-defined edges and faces, and this specimen is noted as bifacial, meaning the crystal has prominent faces on more than one side, enhancing its geometric allure. The fluorite exhibits a rare UV red fluorescence, a property where certain minerals emit visible light when exposed to ultraviolet light due to specific impurities or structural features. This property is particularly valued by collectors and enthusiasts for its visual spectacle and as a diagnostic tool. The specimen's positioning on matrix preserves its natural growth environment and aids in understanding the mineral's geological context. Fluorite is sought after for its wide range of colors, crystal forms, and fluorescence, making this gray, UV-active piece a distinctive addition to collections focusing on mineral fluorescence or cubic crystal forms.