Fluorite Groups on Matrix UK Natural Crystal Cluster 40-60mm Mineral Specimen

Description Fluorite Groups on Matrix – Natural UK Mineral Specimen (40–60mm) This Fluorite Groups on Matrix specimen is a genuine UK mineral example, featuring well-formed fluorite crystals naturally grown on their original host rock. Measuring approximately 40–60mm (full sizing please see photo), each piece is a carefully chosen specimen selected for crystal definition, colour and overall display quality. The photograph provided shows an example of the actual specimen you will receive. Every crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine mineral specimen. Mineral Type & Chemical Composition Fluorite is a calcium fluoride mineral with the chemical formula CaF₂. It crystallises in the isometric (cubic) crystal system, commonly forming sharp cubes, octahedrons, or combinations of both. Its internal atomic structure allows for distinctive geometric crystal growth, often producing highly aesthetic stepped or intergrown cubic formations. Fluorite has a hardness of 4 on the Mohs scale, displays perfect octahedral cleavage, and is known for its vitreous lustre. The mineral is transparent to translucent and may show zoning, internal phantoms, or colour banding depending on formation conditions. UK Locality & Geological Formation The United Kingdom is internationally recognised for high-quality fluorite, particularly from historic mining regions such as Weardale (County Durham), Derbyshire, and other Northern England ore fields. These deposits typically formed in hydrothermal veins associated with lead and zinc mineralisation. Fluorite crystals developed within fractures and cavities in limestone or other host rocks as mineral-rich fluids cooled and crystallised. The matrix attached to this specimen represents part of the original geological environment, adding both scientific and display value. Associated minerals in UK fluorite deposits may include galena, sphalerite, calcite, quartz, and baryte, depending on the vein system. Colour, Clarity & Crystal Features UK fluorite is particularly admired for its rich and varied colours. Specimens may display: Purple, green, blue, or colour-zoned cubic crystals Transparent to translucent clarity Internal growth zoning visible under strong light Natural surface lustre with sharp crystal edges Attractive contrast between fluorite crystals and matrix rock Some UK fluorite exhibits fluorescence under ultraviolet light due to trace elements within the crystal lattice, a feature that has historically contributed to the mineral’s name. Each group formation is naturally unique, with crystal clusters arranged in aesthetically pleasing patterns across the matrix. Size, Presentation & Authenticity Specimen Type: Fluorite crystal groups on natural matrix Origin: United Kingdom Size: Approximately 40–60mm (see photo for scale reference) Authenticity: Supplied with Certificate of Authenticity lifetime guarantee generic card The specimen is ideal for mineral collectors, geology enthusiasts, educational display, cabinet collections, or as a distinctive natural history gift. Its combination of crystallography, colour, and matrix context makes it both scientifically interesting and visually striking. Collecting & Traditional Associations Fluorite has long been valued in mineral collections due to its perfect cubic crystal habit and wide colour range. Historically used in metallurgy as a flux and in decorative carvings, it remains one of the most recognisable collector minerals worldwide. In spiritual traditions, fluorite is often associated with clarity and focus, though these associations are cultural in origin. From a geological perspective, its true appeal lies in its crystallography, colour zoning, and classic British mining heritage. This Fluorite Groups on Matrix specimen represents a natural piece of UK mineral history, carefully selected to provide both visual impact and geological authenticity.