{"product_id":"black-tourmaline-schorl-wheal-cal-st-just-cornwall-no-1","title":"Black Tourmaline (Schorl) | Wheal Cal, St Just, Cornwall | No. 1","description":"\n\u003cp\u003eA fascinating \u003cstrong\u003eBlack Tourmaline (Schorl) mineral specimen from Wheal Cal, St Just, Cornwall\u003c\/strong\u003e, displaying dark crystalline formations within a rugged, naturally iron-stained matrix.\u003c\/p\u003e\n\n\u003cp\u003eThis 95g specimen features a dramatic combination of charcoal-black mineralisation, rusty-orange staining and small areas of pale mineral material. The contrasting colours highlight the natural geological textures and give the piece a wonderfully earthy, unpolished appearance.\u003c\/p\u003e\n\n\u003cp\u003eOne of its most interesting features is the concentration of \u003cstrong\u003eBlack Tourmaline crystals\u003c\/strong\u003e visible across the darker surfaces. Several exposed formations display elongated, blade-like appearances with fine parallel striations and reflective crystal faces.\u003c\/p\u003e\n\n\u003cp\u003eSmall groups of crystals occur in tightly packed arrangements, with some forming radiating, fan-like patterns. As the specimen is moved beneath the light, these glossy black crystalline areas stand out against the surrounding darker, more granular matrix.\u003c\/p\u003e\n\n\u003cp\u003eAlong one side, a substantial area of rusty-orange and ochre-coloured iron staining creates a striking contrast with the black mineral formations. Small pale mineral patches and irregular natural cavities add further detail.\u003c\/p\u003e\n\n\u003cp\u003eThe reverse displays a more compact, weathered appearance, with uneven mineral surfaces and subtle variations between charcoal grey, dark brown and earthy greenish-grey tones.\u003c\/p\u003e\n\n\u003cp\u003eMeasuring approximately \u003cstrong\u003e62.5mm × 38.1mm\u003c\/strong\u003e and weighing \u003cstrong\u003e95g\u003c\/strong\u003e, this is a characterful natural specimen with plenty of visual interest, particularly suited to collectors of British minerals, Tourmaline and historic Cornish mining specimens.\u003c\/p\u003e\n\n\u003ch3\u003eAbout the Mineral\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlack Tourmaline\u003c\/strong\u003e, commonly known as \u003cstrong\u003eSchorl\u003c\/strong\u003e, is an iron-rich member of the Tourmaline mineral group.\u003c\/p\u003e\n\n\u003cp\u003eSchorl is a complex borosilicate mineral, typically black to very dark brown in colour, with a vitreous lustre and a Mohs hardness of approximately 7 to 7.5.\u003c\/p\u003e\n\n\u003cp\u003eTourmaline commonly develops elongated prismatic crystals, frequently displaying fine vertical striations along their surfaces. Crystal groups may occur as parallel aggregates, interlocking formations or radiating clusters.\u003c\/p\u003e\n\n\u003cp\u003eSchorl is particularly associated with granite-related geological environments, including pegmatites and hydrothermal mineral veins, where boron-rich fluids contribute to its formation.\u003c\/p\u003e\n\n\u003cp\u003eCornwall is historically recognised for its diverse Tourmaline occurrences, with Schorl documented in several of the county's granite-associated mineral districts.\u003c\/p\u003e\n\n\n\u003ch3\u003eWheal Cal (Wheal Call), St Just, Cornwall\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWheal Cal\u003c\/strong\u003e, also historically recorded as Wheal Call, Wheal Cole and Wheal Caul, is associated with the historic Boswedden mining complex in the Kenidjack Valley near St Just, Cornwall.\u003c\/p\u003e\n\n\u003cp\u003eThe mine forms part of the wider St Just mining district, one of Cornwall's most historically important areas for tin and copper extraction.\u003c\/p\u003e\n\n\u003cp\u003eMining activity around Wheal Call dates back to at least the eighteenth century, with the workings subsequently incorporated into the neighbouring Boswedden and Wheal Castle mining operations.\u003c\/p\u003e\n\n\u003cp\u003eHistorical records document the combined workings operating as \u003cstrong\u003eBoswedden and Wheal Castle between 1836 and 1872\u003c\/strong\u003e, before becoming associated with Wheal Cunning United.\u003c\/p\u003e\n\n\u003cp\u003eThe mining complex extracted tin, copper and iron from mineralised veins running through the surrounding geological formations.\u003c\/p\u003e\n\n\u003cp\u003eThe Kenidjack Valley contains an extensive network of historic mine workings, where mineral-rich hydrothermal fluids circulated through fractured rocks and deposited metallic ores alongside a variety of associated minerals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlack Tourmaline (Schorl)\u003c\/strong\u003e is a documented mineral occurrence within the wider St Just mining district. This iron-rich Tourmaline is associated with granite-related geological environments and boron-rich mineralising fluids.\u003c\/p\u003e\n\n\u003cp\u003eThis specimen is recorded as originating from Wheal Cal and offers a fascinating connection to Cornwall's historic mining heritage, combining naturally formed black crystals with the rugged, iron-stained character of the surrounding matrix.\u003c\/p\u003e\n\n\n\u003ch3\u003eIntention\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eProtection \u0026amp; Grounding\u003c\/strong\u003e\u003cbr\u003e\nWithin crystal traditions, Black Tourmaline is associated with \u003cstrong\u003eprotection, grounding, stability and emotional resilience\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIt is traditionally regarded as a symbolic stone for establishing personal boundaries, maintaining focus and encouraging a sense of security during periods of uncertainty.\u003c\/p\u003e\n\n\u003cp\u003eIts dark, earthy appearance also connects it symbolically with strength, steadiness and remaining grounded in everyday life.\u003c\/p\u003e\n\n\u003ch3\u003eAssociated Chakras\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eRoot Chakra\u003c\/strong\u003e\u003cbr\u003e\nBlack Tourmaline is most commonly associated with the Root Chakra, representing grounding, stability, security and connection to the physical world.\u003c\/p\u003e\n\n\u003cp\u003eIts deep black colouring is traditionally linked with protective symbolism and establishing a strong personal foundation.\u003c\/p\u003e\n\n\u003ch3\u003eShape Symbolism\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eRaw Mineral Specimen\u003c\/strong\u003e\u003cbr\u003e\nRaw crystals are traditionally associated with \u003cstrong\u003eauthenticity, natural strength and connection to the Earth\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis specimen retains its original irregular form, exposed crystalline structures and natural mineral textures, preserving the individual character of the stone.\u003c\/p\u003e\n\n\u003cp\u003eWithin crystal traditions, unpolished mineral specimens symbolise resilience, individuality and the beauty of natural geological formation.\u003c\/p\u003e\n\n\u003ch3\u003eSpecimen Details\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral:\u003c\/strong\u003e Black Tourmaline (Schorl)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocality:\u003c\/strong\u003e Wheal Cal, St Just, Cornwall, England\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Raw Mineral Specimen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural \/ Unpolished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 95g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. 38.1mm × 62.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e Black, charcoal grey, rusty orange and earthy brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntention:\u003c\/strong\u003e Protection \u0026amp; Grounding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssociated Chakra:\u003c\/strong\u003e Root Chakra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollection:\u003c\/strong\u003e Cornish Minerals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eYou will receive the exact Black Tourmaline specimen photographed. Natural variations in crystal formations, mineral staining, matrix, surface texture and irregular edges are part of the individual character of this Cornish mineral specimen.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMineral identification and mine attribution follow the supplied specimen information.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eHandle carefully around exposed crystals and avoid abrasive cleaning. Keep dry and gently remove dust using a soft brush.\u003c\/em\u003e\u003c\/p\u003e\n","brand":"Harpo's Angels","offers":[{"title":"Default Title","offer_id":59228582117711,"sku":"1","price":17.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1238\/5615\/files\/download_a613f942-a55e-40e9-836f-b774d7f17e08.png?v=1792744196","url":"https:\/\/harposangels.co.uk\/products\/black-tourmaline-schorl-wheal-cal-st-just-cornwall-no-1","provider":"Harpo's Angels","version":"1.0","type":"link"}