{"product_id":"iron-chromite-pigment-425137926","title":"Iron Chromite Pigment","description":"\u003cp\u003eDescription\u003c\/p\u003e\u003cp\u003eIron Chromite is a deep, dark mineral pigment produced by grinding the naturally occurring spinel mineral FeCr₂O₄. It yields a nearly black to very dark grey color with a subtle metallic sheen. Because of its density and chemical stability, it is highly opaque and provides excellent covering power.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe pigment produces cool, earthy blacks that can lean slightly greenish or bluish depending on the medium. In watercolor, it gives a strong, granulating wash with muted undertones. In oil, tempera, and acrylic, it acts as a permanent, dense black substitute for carbon-based blacks, offering higher opacity and a mineral quality.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHistory\u003c\/p\u003e\u003cp\u003eIron Chromite has been mined since antiquity, primarily as a source of chromium for alloys and dyes. Its natural black pigment form, however, became better known in the 19th and 20th centuries with the rise of mineral pigment production for industrial and fine art use.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUnlike vegetable-based blacks (such as vine black or bone black), Iron Chromite offered extreme permanence, heat resistance, and stability, making it useful not only for artists but also in ceramics, refractories, and high-performance paints.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eIts role in traditional art palettes is more limited compared to ochres and carbon blacks, but conservators and pigment specialists value it for its authenticity, permanence, and unique tonality.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003ePigment Information\u003c\/p\u003e\u003cp\u003ePigment Type: Natural Inorganic Mineral (Spinel group)\u003c\/p\u003e\u003cp\u003eChemical Composition: FeCr₂O₄ (Iron(II) Chromite)\u003c\/p\u003e\u003cp\u003eSuitable Mediums: Watercolor, Oil, Tempera, Acrylic, Encaustic, Cold Wax, Casein, Milk, Swedish Flour, Lime \/ Fresco, Ceramics, Enamels\u003c\/p\u003e\u003cp\u003eLightfastness: Excellent\u003c\/p\u003e\u003cp\u003eOpacity: Opaque\u003c\/p\u003e\u003cp\u003eOther Names: Chromite Black, Ferrochromite, Iron Chromium Oxide\u003c\/p\u003e\u003cp\u003eColor Index Code: PBr29\u003c\/p\u003e","brand":"Morrow Archival","offers":[{"title":"5 Grams","offer_id":47875245277406,"sku":"PE-031-0000-0005g","price":6.0,"currency_code":"USD","in_stock":true},{"title":"100 Grams","offer_id":47875245310174,"sku":"PE-031-0000-0100g","price":14.0,"currency_code":"USD","in_stock":true},{"title":"300 Grams","offer_id":47875245342942,"sku":"PE-031-0000-0300g","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/2821\/2702\/files\/67296104-fcb4-4dd9-97cd-713fc766a310-copy.jpg?v=1769982486","url":"https:\/\/morrowarchival.com\/products\/iron-chromite-pigment-425137926","provider":"Morrow Archival","version":"1.0","type":"link"}