{"product_id":"large-black-tourmaline-tumbled-stones","title":"Large Black Tourmaline Tumbled Stones","description":"\u003cp\u003e\u003cspan\u003eBlack Tourmaline tumbled stones in large sizing showcase deep charcoal to jet black tones with a smooth polished finish that enhances their natural density and structure. These substantial pieces display subtle internal texture and occasional natural striations softened through the tumbling process.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eBlack Tourmaline, also known as Schorl, is a complex borosilicate mineral formed in igneous and metamorphic environments. In its raw state, it often appears with vertical ridges and columnar growth patterns. Tumbling transforms the stone into a rounded, refined form while preserving its natural weight and solid presence. The polished surface brings out its rich black colouring and understated lustre.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eLarge sizing provides strong visual and tactile presence, making these stones ideal for grounding displays, entryway décor bowls, meditation spaces or individual resale. Their smooth finish makes them comfortable as pocket stones while maintaining impressive shelf appeal. Each piece varies naturally in shape, tone and internal structure, reinforcing authenticity.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn metaphysical traditions, Black Tourmaline is often associated with grounding, protection and energetic shielding. Its deep black colouring is symbolically linked to stability and resilience, making these tumbled stones especially popular in wellness and holistic environments.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eNatural variations may occur in:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eDepth of black tone from charcoal to jet black\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSurface polish and lustre intensity\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSubtle internal inclusions or mineral texture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eShape and contour within the large size category\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMinor natural marks consistent with tumbling\u003c\/span\u003e\u003c\/p\u003e","brand":"Nature's Expression","offers":[{"title":"Default Title","offer_id":52127755927781,"sku":"BTTL","price":7.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0019\/9576\/7866\/files\/imgi_84_tumbled-tourmaline-black-BTTL-1__46985.1775730433.jpg?v=1787177319","url":"https:\/\/bigsun.ca\/products\/large-black-tourmaline-tumbled-stones","provider":"Big Sun Beachwear and Tanning","version":"1.0","type":"link"}