Fluorite Frosterley Weardale County Durham England Genuine Mineral Specimen with Hand Signed Premium Certificate of Authenticity
£ 300.00
GENUINE FROSTERLEY FLUORITE – WEARDALE, COUNTY DURHAM, ENGLANDThis Fluorite specimen from Frosterley, Weardale, County Durham, England, is a
genuine British mineral example carefully selected for quality, crystal structure and locality significance. The photograph provided shows the exact specimen you will receive. Please refer to the images for full sizing details and accurate scale.This crystal includes a fully hand-signed Premium Certificate of Authenticity confirming its genuine origin and mineral identity. MINERAL & GEOLOGICAL CLASSIFICATION – FLUORITE (CALCIUM FLUORIDE)Fluorite is a halide mineral composed of calcium fluoride with the chemical formula CaF₂. It crystallises in the isometric (cubic) crystal system and is well known for forming highly symmetrical cubic crystals, often with sharp edges and well-defined faces.Mineral Type: HalideChemical Formula: CaF₂Crystal System: Isometric (Cubic)Hardness: 4 on the Mohs scaleLustre: VitreousCleavage: Perfect octahedral cleavageFluorite can occur in a wide range of colours including purple, green, blue, yellow and colourless, depending on trace elements and natural irradiation. Frosterley fluorite is especially prized for its clarity and colour zoning, often displaying attractive banding or internal phantoms. FROSTERLEY LOCALITY – WEARDALE MINERAL DISTRICTFrosterley lies within the renowned North Pennines Orefield, one of the most significant mineral-producing regions in England. The Weardale district is internationally recognised for its fluorite specimens, particularly those associated with hydrothermal vein systems.Fluorite in this region formed within mineralised veins cutting through Carboniferous limestone and associated sedimentary rocks. These hydrothermal veins were created when mineral-rich fluids circulated through fractures in the host rock, depositing fluorite along with associated minerals such as galena, sphalerite, calcite and baryte.The geological setting dates primarily to the Carboniferous period, when tectonic processes and fluid migration created favourable conditions for vein mineralisation. Frosterley specimens are especially valued among collectors for their classic British locality and well-formed cubic growth. CRYSTAL CHARACTERISTICS & NOTABLE TRAITSFluorite from Frosterley commonly exhibits:
• Well-defined cubic crystal forms
• Transparent to translucent clarity
• Internal colour zoning or subtle banding
• Smooth crystal faces with occasional stepped growth patternsThe vitreous lustre gives the crystals a bright reflective surface, particularly under natural light. Some specimens may display fluorescence under ultraviolet light, a characteristic feature of many fluorite varieties, though intensity varies by specimen.Natural inclusions, minor contact points or growth marks are part of the crystal’s geological development and authenticity. COLLECTIBILITY & DISPLAY APPEALBritish fluorite specimens from Weardale are highly sought after by mineral collectors due to their historical mining heritage and geological significance. The Frosterley locality is particularly respected within the mineral collecting community.This specimen makes an excellent addition to a mineral cabinet, educational geological collection or display shelf. Its defined crystal habit and recognised locality enhance both scientific and aesthetic value.Because this is a genuine natural specimen, each crystal displays unique features shaped by its formation environment. The photograph shows the exact piece you will receive. AUTHENTICITY & PRESENTATIONThis Frosterley Fluorite specimen has been carefully chosen for crystal quality, locality importance and overall presentation. Included with your purchase is a fully hand-signed Premium Certificate of Authenticity confirming its genuine origin from Weardale, County Durham, England.Combining classic British mineral heritage with well-formed cubic crystal structure, this Frosterley Fluorite specimen represents a significant and attractive example of North Pennines hydrothermal mineralisation.
genuine British mineral example carefully selected for quality, crystal structure and locality significance. The photograph provided shows the exact specimen you will receive. Please refer to the images for full sizing details and accurate scale.This crystal includes a fully hand-signed Premium Certificate of Authenticity confirming its genuine origin and mineral identity. MINERAL & GEOLOGICAL CLASSIFICATION – FLUORITE (CALCIUM FLUORIDE)Fluorite is a halide mineral composed of calcium fluoride with the chemical formula CaF₂. It crystallises in the isometric (cubic) crystal system and is well known for forming highly symmetrical cubic crystals, often with sharp edges and well-defined faces.Mineral Type: HalideChemical Formula: CaF₂Crystal System: Isometric (Cubic)Hardness: 4 on the Mohs scaleLustre: VitreousCleavage: Perfect octahedral cleavageFluorite can occur in a wide range of colours including purple, green, blue, yellow and colourless, depending on trace elements and natural irradiation. Frosterley fluorite is especially prized for its clarity and colour zoning, often displaying attractive banding or internal phantoms. FROSTERLEY LOCALITY – WEARDALE MINERAL DISTRICTFrosterley lies within the renowned North Pennines Orefield, one of the most significant mineral-producing regions in England. The Weardale district is internationally recognised for its fluorite specimens, particularly those associated with hydrothermal vein systems.Fluorite in this region formed within mineralised veins cutting through Carboniferous limestone and associated sedimentary rocks. These hydrothermal veins were created when mineral-rich fluids circulated through fractures in the host rock, depositing fluorite along with associated minerals such as galena, sphalerite, calcite and baryte.The geological setting dates primarily to the Carboniferous period, when tectonic processes and fluid migration created favourable conditions for vein mineralisation. Frosterley specimens are especially valued among collectors for their classic British locality and well-formed cubic growth. CRYSTAL CHARACTERISTICS & NOTABLE TRAITSFluorite from Frosterley commonly exhibits:
• Well-defined cubic crystal forms
• Transparent to translucent clarity
• Internal colour zoning or subtle banding
• Smooth crystal faces with occasional stepped growth patternsThe vitreous lustre gives the crystals a bright reflective surface, particularly under natural light. Some specimens may display fluorescence under ultraviolet light, a characteristic feature of many fluorite varieties, though intensity varies by specimen.Natural inclusions, minor contact points or growth marks are part of the crystal’s geological development and authenticity. COLLECTIBILITY & DISPLAY APPEALBritish fluorite specimens from Weardale are highly sought after by mineral collectors due to their historical mining heritage and geological significance. The Frosterley locality is particularly respected within the mineral collecting community.This specimen makes an excellent addition to a mineral cabinet, educational geological collection or display shelf. Its defined crystal habit and recognised locality enhance both scientific and aesthetic value.Because this is a genuine natural specimen, each crystal displays unique features shaped by its formation environment. The photograph shows the exact piece you will receive. AUTHENTICITY & PRESENTATIONThis Frosterley Fluorite specimen has been carefully chosen for crystal quality, locality importance and overall presentation. Included with your purchase is a fully hand-signed Premium Certificate of Authenticity confirming its genuine origin from Weardale, County Durham, England.Combining classic British mineral heritage with well-formed cubic crystal structure, this Frosterley Fluorite specimen represents a significant and attractive example of North Pennines hydrothermal mineralisation.
Other Products
