{"product_id":"polished-dendritic-agate-madagascar-1","title":"Polished Dendritic Agate - Madagascar","description":"\u003cp\u003eThis Polished Dendritic Agate is a striking mineral specimen sourced from the rich, diverse geological deposits of Madagascar. As a semi-translucent variety of chalcedony quartz, this material is defined by its complex, tree-like or fern-like inclusions trapped inside a clear to milky silica body. These delicate structures are formed by a process known as dendritic branching, which occurs when iron and manganese-rich mineral fluids seep into micro-fractures during the initial crystallization of the stone. Over millions of years, these oxides precipitate into dark, branching patterns that contrast sharply against the pale, glass-like background matrix.\u003c\/p\u003e\n\u003cp\u003eThe high-grade refinement applied to this Polished Dendritic Agate highlights the incredible three-dimensional depth of the internal inclusions. Lapidaries apply a smooth, mirror-like finish to the faces of the stone, giving it a vitreous luster that allows light to penetrate deep into the translucent layers. This transparency exposes the fine, web-like boundaries of the dark metal oxides, turning a raw volcanic rock into a pocket-sized natural canvas. Because chalcedony registers a 6.5 to 7 on the Mohs hardness scale, this specimen is highly scratch-resistant and durable.\u003c\/p\u003e\n\u003cp\u003eEach piece of Polished Dendritic Agate is unique, retaining its own organic arrangement of branch formations and matrix tones. The background silica varies from white to a deep, smoky gray, creating an unrepeatable backdrop for the charcoal and rust-colored dendrites. This specimen serves as an informative educational tool for demonstrating non-organic mineral branching, as well as an elegant addition to a professional display case or private rockhound collection. Every item is packed with thick protective materials to safeguard the polished surfaces during transport.\u003c\/p\u003e\n\u003cp\u003eSize: 5in x 2.25in x 2in\u003c\/p\u003e\n\u003cp\u003eWeight: 538g\u003c\/p\u003e","brand":"Desert Oasis Minerals","offers":[{"title":"Default Title","offer_id":53665057308951,"sku":null,"price":25.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/2300\/9559\/files\/07687ECA-351A-45D7-9A99-60CAD701F7EE.jpg?v=1783911519","url":"https:\/\/desertoasisminerals.com\/products\/polished-dendritic-agate-madagascar-1","provider":"Desert Oasis Minerals LLC","version":"1.0","type":"link"}