{"product_id":"agate-geode-d-natural-brazil","title":"Agate geode (D) — natural, Brazil","description":"\u003cp dir=\"ltr\"\u003eWhite through the whole polished face, with the raw rind left on.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eWhite is information rather than an absence of it. Agate gets its colour from whatever the water was carrying alongside the silica, mostly iron for the reds and browns, manganese for the darker tones. A white geode means the water arrived carrying almost nothing else. Just silica, over and over, for as long as it took to fill the cavity.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThat makes the banding easier to read than on a coloured piece, because there is nothing competing with it. You are looking at structure on its own. The rhythm of deposition, where it paused, where it sped up, and where the last of the silica gave up and finished as crystal instead of a smooth layer.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eMineral:\u003c\/strong\u003e Agate, banded chalcedony (silicon dioxide, SiO₂)\u003cbr\u003e\u003cstrong\u003eCrystal system: \u003c\/strong\u003eTrigonal\u003cbr\u003e\u003cstrong\u003eOrigin: \u003c\/strong\u003eRio Grande do Sul, Brazil\u003cbr\u003e\u003cstrong\u003eHardness: \u003c\/strong\u003e6\u003cmeta charset=\"utf-8\"\u003e.5 to 7 on the Mohs scale; durable, though the polished face will dull if knocked about\u003cbr\u003e\u003cstrong\u003eTreatment: \u003c\/strong\u003eNone\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 18.5 x 9.35 x 21 cm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.69 kg                                                                                                                                        \u003cstrong\u003eNote:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eCut face polished, exterior left natural\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eYou will receive the exact piece photographed.\u003c\/p\u003e","brand":"The Crystal Showroom","offers":[{"title":"Default Title","offer_id":58512114352472,"sku":null,"price":220.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/4880\/5720\/files\/agb-d-1.jpg?v=1789813180","url":"https:\/\/thecrystalshowroom.com\/products\/agate-geode-d-natural-brazil","provider":"The Crystal Showroom","version":"1.0","type":"link"}