{"product_id":"yellow-blue-fluorite-crystal-cluster-wheal-mary-ann-cornwall","title":"Yellow \u0026 Blue Fluorite Crystal Cluster | Wheal Mary Ann, Cornwall","description":"\u003cp\u003eA striking natural Cornish fluorite specimen displaying a beautiful combination of golden-yellow, honey-amber, smoky-grey and pale translucent mineral formations. Attributed to \u003cstrong\u003eWheal Mary Ann, Menheniot, Cornwall\u003c\/strong\u003e, this substantial 660g specimen features an intricate arrangement of intergrown crystals, contrasting colour zones and naturally irregular mineral surfaces.\u003c\/p\u003e\n\n\u003cp\u003eWith its rich golden tones, darker grey-blue areas and complex three-dimensional structure, this is an attractive addition to any collection of Cornish minerals, British fluorite or historic mining specimens.\u003c\/p\u003e\n\n\u003ch3\u003eSpecimen Description\u003c\/h3\u003e\n\n\u003cp\u003eThis distinctive specimen features a substantial, naturally irregular formation composed of intergrown translucent crystals and contrasting areas of darker mineral material.\u003c\/p\u003e\n\n\u003cp\u003eThe most prominent feature is its beautiful golden-yellow to honey-amber colouration, particularly visible across the upper portion of the specimen. These warm yellow crystals exhibit varying degrees of transparency, ranging from pale translucent champagne tones to deeper golden areas with a rich, almost resinous appearance.\u003c\/p\u003e\n\n\u003cp\u003eAcross the central and lower sections, darker smoky-grey and blue-grey mineral areas provide a striking contrast against the surrounding golden crystals. The transition between these colours is particularly attractive, with pale yellow-green translucent sections appearing alongside the darker mineral formations.\u003c\/p\u003e\n\n\u003cp\u003eSeveral exposed crystal surfaces display angular outlines, reflective faces and natural growth irregularities. The close-up photographs reveal a complex arrangement of intergrown mineral surfaces, including translucent areas with visible internal textures and darker zones exhibiting fine surface markings.\u003c\/p\u003e\n\n\u003cp\u003eCertain sections display a glassy lustre, while others appear more textured or naturally weathered.\u003c\/p\u003e\n\n\u003cp\u003eThe upper portion contains particularly attractive golden crystal growth, with individual translucent sections overlapping and extending across the irregular surface. Smaller mineral formations occur throughout the specimen, creating considerable variation in texture and visual depth.\u003c\/p\u003e\n\n\u003cp\u003eThe rear and side photographs reveal additional yellow, grey and cream-coloured material, demonstrating that the specimen's mineralisation extends beyond its most prominent display face.\u003c\/p\u003e\n\n\u003cp\u003eSubtle rusty-orange and earthy-brown staining is visible in places, adding further contrast to the pale and darker crystalline areas. These colour variations may reflect associated mineralisation, inclusions or surface alteration, although their precise composition has not been independently determined.\u003c\/p\u003e\n\n\u003cp\u003eWeighing \u003cstrong\u003e660g and measuring 98.0mm along its longest supplied dimension\u003c\/strong\u003e, this is a substantial collector's specimen with an especially interesting combination of colour, texture and natural crystal growth.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Fluorite\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eFluorite (CaF₂)\u003c\/strong\u003e is a naturally occurring calcium fluoride mineral belonging to the halide mineral group.\u003c\/p\u003e\n\n\u003cp\u003eIt crystallises in the cubic, or isometric, crystal system and has a Mohs hardness of 4.\u003c\/p\u003e\n\n\u003cp\u003eFluorite is particularly admired by mineral collectors for its remarkable variety of colours, which include purple, blue, green, yellow, pink, colourless and combinations of several colours within individual specimens.\u003c\/p\u003e\n\n\u003cp\u003eThe mineral commonly develops cubic crystals, although octahedral and more complex crystal forms also occur. Its perfect octahedral cleavage is one of its most distinctive physical characteristics, allowing fluorite to separate along specific crystallographic planes.\u003c\/p\u003e\n\n\u003cp\u003eFluorite is typically transparent to translucent and often exhibits a vitreous, or glass-like, lustre. Its colours can result from structural defects, trace elements and other processes affecting the crystal lattice.\u003c\/p\u003e\n\n\u003cp\u003eYellow fluorite may display tones ranging from pale champagne to golden amber, while darker varieties can exhibit grey, blue or violet colouration.\u003c\/p\u003e\n\n\u003cp\u003eSome fluorite specimens display fluorescence under ultraviolet light, although this property varies considerably between specimens and should not be assumed without testing.\u003c\/p\u003e\n\n\u003cp\u003eFluorite commonly forms in hydrothermal mineral veins, where mineral-rich fluids circulate through fractures and cavities in surrounding rocks. As these fluids cool or their chemistry changes, dissolved minerals may precipitate and develop crystals.\u003c\/p\u003e\n\n\u003cp\u003eFluorite frequently occurs alongside quartz, calcite, baryte, galena and other minerals associated with hydrothermal ore deposits.\u003c\/p\u003e\n\n\u003cp\u003eIts formation may involve multiple episodes of mineral deposition, resulting in complex relationships between different generations of crystals.\u003c\/p\u003e\n\n\u003cp\u003eThe contrasting mineral colours and intergrown structures visible in this specimen provide an attractive example of the varied appearances associated with natural fluorite mineralisation.\u003c\/p\u003e\n\n\u003cp\u003eThe precise growth sequence and identities of any additional minerals present in this individual specimen have not been independently established.\u003c\/p\u003e\n\n\u003ch3\u003eWheal Mary Ann \u0026amp; Cornish Geological Heritage\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWheal Mary Ann\u003c\/strong\u003e, near Menheniot in south-east Cornwall, is a historically significant mineral locality associated with the region's extensive lead and silver mining industry.\u003c\/p\u003e\n\n\u003cp\u003eThe Menheniot district contains important mineral veins that were exploited during Cornwall's nineteenth-century mining expansion.\u003c\/p\u003e\n\n\u003cp\u003eUnlike the predominantly tin- and copper-producing districts for which Cornwall is particularly famous, the Menheniot area became notable for its lead and silver-bearing mineral deposits.\u003c\/p\u003e\n\n\u003cp\u003eThe area's mineralisation occurs within structurally controlled veins cutting Devonian sedimentary rocks.\u003c\/p\u003e\n\n\u003cp\u003eHistorical geological records describe the Menheniot mineral veins as containing galena, quartz, chalcedony, fluorite, siderite, calcite, baryte and associated sulphide minerals.\u003c\/p\u003e\n\n\u003cp\u003eGalena, a lead sulphide mineral, was especially important because some deposits contained economically significant quantities of silver.\u003c\/p\u003e\n\n\u003cp\u003eWheal Mary Ann formed part of an extensive mining district in which interconnected mineral veins supported substantial underground workings.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eBritish Geological Survey's Plymouth and South-East Cornwall geological memoir\u003c\/strong\u003e identifies fluorite as a major gangue mineral at Wheal Mary Ann.\u003c\/p\u003e\n\n\u003cp\u003eGangue minerals are minerals occurring alongside economically valuable ore minerals, although they are not necessarily the principal material being extracted.\u003c\/p\u003e\n\n\u003cp\u003eThe same geological documentation describes quartz as a principal vein filling at Wheal Mary Ann, with chalcedonic material occurring along the vein walls.\u003c\/p\u003e\n\n\u003cp\u003eCrystalline quartz, galena and siderite are recorded within the mineral sequence, alongside fluorite.\u003c\/p\u003e\n\n\u003cp\u003eImportantly, the geological evidence indicates that at least two generations of fluorite mineralisation may have occurred at the locality.\u003c\/p\u003e\n\n\u003cp\u003eThis suggests a complex history involving repeated episodes of mineral deposition and changing hydrothermal conditions.\u003c\/p\u003e\n\n\u003cp\u003eHistorical geological studies also describe fluorite occurring both before and after particular stages of galena deposition.\u003c\/p\u003e\n\n\u003cp\u003eSuch relationships are especially interesting to mineral collectors because they demonstrate how the mineral assemblages of a single vein can develop through multiple geological events.\u003c\/p\u003e\n\n\u003cp\u003eThe wider Menheniot district is also recognised for its mineralogical diversity, including specimens of fluorite, quartz, galena and other associated minerals.\u003c\/p\u003e\n\n\u003cp\u003eWheal Mary Ann has long been recognised in mineralogical literature, with fluorite recorded from the locality in nineteenth-century mineral directories.\u003c\/p\u003e\n\n\u003cp\u003eFor collectors of British minerals, specimens attributed to Wheal Mary Ann offer a tangible connection to Cornwall's rich mining heritage and the geological processes responsible for its distinctive mineral deposits.\u003c\/p\u003e\n\n\u003cp\u003eThis specimen's supplied locality attribution places it within that historic mineral-producing district.\u003c\/p\u003e\n\n\u003ch3\u003eIntention \u0026amp; Associated Chakras\u003c\/h3\u003e\n\n\u003cp\u003eWithin traditional crystal healing practices, fluorite is associated with mental clarity, concentration, personal development and emotional balance.\u003c\/p\u003e\n\n\u003cp\u003eDifferent colours of fluorite are traditionally associated with different symbolic qualities.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Traditionally associated with clear thinking, concentration and organising thoughts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth \u0026amp; Success:\u003c\/strong\u003e Symbolically linked with learning, personal development, determination and achieving goals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalm:\u003c\/strong\u003e Associated with emotional balance, peaceful reflection and reducing feelings of overwhelm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Traditionally connected with energetic boundaries and maintaining a sense of stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiritual Growth:\u003c\/strong\u003e Associated with self-awareness, intuition and exploring personal understanding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfidence:\u003c\/strong\u003e Golden and yellow fluorite are symbolically associated with motivation, optimism and personal confidence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAssociated Chakras:\u003c\/strong\u003e Solar Plexus Chakra and Third Eye Chakra.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Intention:\u003c\/strong\u003e Growth \u0026amp; Success.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eThese associations reflect traditional spiritual beliefs and are not scientifically established effects of fluorite.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eNatural Formation \u0026amp; Symbolism\u003c\/h3\u003e\n\n\u003cp\u003eThis specimen retains its naturally irregular crystalline structure, exposed mineral faces and contrasting areas of translucent and darker material.\u003c\/p\u003e\n\n\u003cp\u003eThe golden-yellow formations provide a particularly attractive focal point, while the surrounding smoky-grey and blue-grey areas emphasise the diversity of its mineral colours.\u003c\/p\u003e\n\n\u003cp\u003eIts intergrown crystals and complex surfaces illustrate the visual character of mineralisation formed within geological veins.\u003c\/p\u003e\n\n\u003cp\u003eThe contrasting colours also make this an interesting display specimen, with different areas becoming more prominent depending on lighting and viewing angle.\u003c\/p\u003e\n\n\u003cp\u003eIn traditional crystal symbolism, yellow fluorite is associated with confidence, creativity and personal growth, while darker and cooler fluorite colours are often connected with reflection, clarity and emotional balance.\u003c\/p\u003e\n\n\u003cp\u003eBeyond these symbolic interpretations, the specimen offers an appealing example of natural Cornish mineralisation and a connection to the historic lead-silver mining landscape of Menheniot.\u003c\/p\u003e\n\n\u003ch3\u003eSpecimen Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral:\u003c\/strong\u003e Fluorite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Formula:\u003c\/strong\u003e CaF₂\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral Group:\u003c\/strong\u003e Halides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal System:\u003c\/strong\u003e Cubic (Isometric)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs Hardness:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplied Locality Attribution:\u003c\/strong\u003e Wheal Mary Ann\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocation:\u003c\/strong\u003e Menheniot, Cornwall, England\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 660g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 63.0mm × 98.0mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormation:\u003c\/strong\u003e Natural intergrown fluorite-bearing mineral specimen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Golden yellow, honey amber, pale yellow-green, smoky grey, blue-grey and cream\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e Translucent crystalline areas, contrasting mineral colours, angular crystal surfaces, natural intergrowths and irregular mineral textures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Raw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural, unpolished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One individual specimen\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eYou will receive the exact specimen photographed. Natural mineral specimens may display irregular edges, fractures, inclusions, surface alteration, uneven textures and delicate exposed crystal formations.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eDisplay supports, wooden plinth and decorative flowers shown in the photographs are not included.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSources \u0026amp; References\u003c\/h3\u003e\n\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBritish Geological Survey – Plymouth and South-East Cornwall Area, Geological Memoir (Sheet 348).\u003c\/strong\u003e Geological documentation describing the Menheniot mineral veins, Wheal Mary Ann mineralisation and multiple generations of fluorite formation.\u003cbr\u003e\n\u003ca href=\"https:\/\/webapps.bgs.ac.uk\/memoirs\/docs\/B06072.html\" target=\"_blank\" rel=\"noopener\"\u003eBritish Geological Survey Geological Memoir\u003c\/a\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eBritish Geological Survey – Silver, Mineral Resources Consultative Committee Mineral Dossier.\u003c\/strong\u003e Geological and historical information concerning the Menheniot lead-silver mining district and the Mary Ann\/Trelawny mineral veins.\u003cbr\u003e\n\u003ca href=\"https:\/\/nora.nerc.ac.uk\/id\/eprint\/540032\/1\/B02707.pdf\" target=\"_blank\" rel=\"noopener\"\u003eBritish Geological Survey Silver Mineral Dossier\u003c\/a\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMindat – Wheal Mary Ann, Menheniot, Cornwall.\u003c\/strong\u003e Mineral locality database recording fluorite and associated mineral species, with historical references.\u003cbr\u003e\n\u003ca href=\"https:\/\/www.mindat.org\/loc-1074.html\" target=\"_blank\" rel=\"noopener\"\u003eWheal Mary Ann Mineral Locality\u003c\/a\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eUniversity of Cambridge – Fluorite Mineral Collection.\u003c\/strong\u003e Mineralogical reference covering fluorite's chemical composition, cubic crystal system, cleavage and physical properties.\u003cbr\u003e\n\u003ca href=\"https:\/\/p1acollections.esc.cam.ac.uk\/p1acollections\/exhibits\/show\/minerals\/fluorite.html\" target=\"_blank\" rel=\"noopener\"\u003eUniversity of Cambridge Fluorite Collection\u003c\/a\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eHenwood, W. J. (1871).\u003c\/strong\u003e \u003cem\u003eObservations on Metalliferous Deposits: On the Lead Mines of Menheniot, Lanreath and Saint Pinnock.\u003c\/em\u003e Transactions of the Royal Geological Society of Cornwall, Volume 8, pages 699–722.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\n","brand":"Harpo's Angels","offers":[{"title":"Default Title","offer_id":59274089103695,"sku":"CF69","price":69.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1238\/5615\/files\/download_03a71bd2-38de-4948-9362-1fd466e93338.png?v=1793038933","url":"https:\/\/harposangels.co.uk\/products\/yellow-blue-fluorite-crystal-cluster-wheal-mary-ann-cornwall","provider":"Harpo's Angels","version":"1.0","type":"link"}