{"product_id":"polished-butter-jade-spheres-x-6-from-bronkhorstspruit-south-africa","title":"Polished Butter Jade Spheres x 6 From Bronkhorstspruit, South Africa","description":"\u003cp\u003e\u003cb\u003eA NOTE FROM NICK \u003cbr\u003e\u003c\/b\u003eA tray of 5 expertly polished Butter Jade spheres, with 1 sneaky White Marble sphere in the mix. These are locally sourced South African stone that doesn't get nearly enough attention.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePRODUCT DESCRIPTION \u003cbr\u003e\u003c\/b\u003e\u003cstrong\u003eWarm Polished Butter Jade Specimens From Bronkhorstspruit, South Africa\u003c\/strong\u003e\u003cbr\u003eSouth African Butter Jade is a locally recognised trade name for a pale yellow to golden green variety of Nephrite or Serpentinite found in the Bronkhorstspruit area of Gauteng, South Africa, its warm buttery colouration produced by iron and magnesium silicate mineral content distributed throughout the fine-grained metamorphic matrix. As a Serpentinite-group material it forms through the hydrothermal alteration of ultramafic rocks under low to medium grade metamorphic conditions, producing a dense, interlocking fibrous mineral structure with excellent toughness and a waxy to greasy lustre on polished surfaces. The colour ranges from pale cream and soft yellow through to warm golden tones, often with subtle translucency in finer material that gives polished pieces a characteristic inner glow. Bronkhorstspruit is one of the primary South African sources for this material, and polished Butter Jade pieces represent an attractive and accessible locally produced decorative stone.\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eASSOCIATED MINERALS \u003cbr\u003e\u003c\/b\u003eSerpentine, Nephrite, Chlorite, Calcite\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eASSOCIATED FEATURES \u003cbr\u003e\u003c\/b\u003eMonoclinic, Fibrous, Waxy, Translucent\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eASSOCIATED COLOURS \u003cbr\u003e\u003c\/b\u003eYellow, Cream, Gold, Green, White\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eMOHS HARDNESS SCALE\u003ci\u003e\u003cbr\u003e\u003c\/i\u003e\u003c\/b\u003e3 - 4\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePRODUCT DATA \u003cbr\u003e\u003c\/b\u003eLocality = Bronkhorstspruit, South Africa\u003cbr\u003eGrade = Good to A Grade\u003cspan style=\"mso-spacerun: yes;\"\u003e                      \u003c\/span\u003e\u003cbr\u003eSize = 50 - 52 mm\u003c\/p\u003e","brand":"VARIOUS MINERALS","offers":[{"title":"Default Title","offer_id":50503457079489,"sku":"187-339-260816BM","price":1372.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/187339_6_ba250ecf-0fbc-453a-9aa0-afef44c01f9c.jpg?v=1787215932","url":"https:\/\/www.toprocks.com\/products\/polished-butter-jade-spheres-x-6-from-bronkhorstspruit-south-africa","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}