{"product_id":"polished-large-black-and-green-marble-spheres-x-2-from-rustenburg-south-africa","title":"Polished Large Black and Green Marble Spheres x 2 From Rustenburg, South Africa","description":"\u003cp\u003e\u003cb\u003eA NOTE FROM NICK \u003cbr\u003e\u003c\/b\u003eA large pair of expertly polished Green and Black Marble spheres with interesting patterns. A bargain at this price.  \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePRODUCT DESCRIPTION \u003cbr\u003e\u003c\/b\u003e\u003cb\u003eMixed Marble Spheres From South Africa\u003cbr\u003e\u003c\/b\u003eSouth African Marble is a metamorphic rock formed through the recrystallisation of Limestone or Dolomite under intense heat and pressure deep within the earth's crust, producing a dense, interlocking mosaic of Calcite or Dolomite crystals. The Rustenburg area of South Africa's North West Province sits within ancient Precambrian geology and produces a clean, fine-grained Marble with excellent structural integrity suited to lapidary work. These spheres have been cut and polished to a smooth high lustre finish, revealing the subtle crystalline texture and occasional veining characteristic of the Rustenburg material. Marble has been prized for centuries for its purity of colour and the quality of polish it accepts.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cb\u003eASSOCIATED MINERALS \u003cbr\u003e\u003c\/b\u003eCalcite, Dolomite\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cb\u003eASSOCIATED FEATURES \u003cbr\u003e\u003c\/b\u003eTrigonal, Granoblastic, Vitreous, Recrystallised\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cb\u003eASSOCIATED COLOURS \u003cbr\u003e\u003c\/b\u003eWhite, Cream, Green, Black\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cb\u003eMOHS HARDNESS SCALE\u003ci\u003e\u003cbr\u003e\u003c\/i\u003e\u003c\/b\u003e3\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePRODUCT DATA \u003cbr\u003e\u003c\/b\u003eLocality =  Rustenburg, South Africa\u003cbr\u003eGrade = Good Grade\u003cspan style=\"mso-spacerun: yes;\"\u003e                      \u003c\/span\u003e\u003cbr\u003eSize = 99 - 105 mm\u003c\/p\u003e","brand":"MARBLE","offers":[{"title":"Default Title","offer_id":50502207635649,"sku":"187-332-260815BM","price":2828.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/187332_5_fa299adf-7f0a-4b68-9f34-df07ff04f760.jpg?v=1787215937","url":"https:\/\/www.toprocks.com\/products\/polished-large-black-and-green-marble-spheres-x-2-from-rustenburg-south-africa","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}