{"product_id":"113605","title":"Ardoise rouge-brun - Pierre","description":"\u003cb\u003ePlease enter the desired size (in grams) in the quantity field.\u003c\/b\u003e \u003cp\u003eThe brown-red slate Kremer pigment consists of radiolarite from the upper Lechtal, an alpine valley in Austria. This hard, fine-grained sedimentary rock is mainly composed of the microscopic skeletal remains of radiolarians that form an unusually hard, slate-like sediment. Radiolite “grew” very slowly in the Tethys Ocean, so its thick layers actually point to a creation time period of many millions of years. The brown-red color of radiolite is a result of the containing iron and manganese, though its colors range from almost whitish to dark red, green, and brown hues. Because of the extraordinary hardness of radiolite, the stone-age man used this rock for tools and weapons, manufacturing axes, blades, and drills from it. This is way radiolite is also called the “iron of the Paleolithic”.\u003c\/p\u003e","brand":"Kremer Pigments","offers":[{"title":"1 g","offer_id":44482231042118,"sku":"113605","price":0.25,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.newyorkpigmentco.com\/fr\/products\/113605","provider":"New York Pigment Co.","version":"1.0","type":"link"}