{"title":"Aegirine","description":"\u003cp\u003e\u003cstrong\u003eAegirine\u003c\/strong\u003e is a sodium-iron pyroxene (NaFe³⁺Si₂O₆) belonging to the \u003cstrong\u003eclinopyroxene group\u003c\/strong\u003e of inosilicates, prized by collectors for its dark, glassy, needle-like crystals. Typically green, brown, or greenish-black, aegirine forms slender prismatic crystals with lengthwise striations and sharp, spear-like terminations — a feature that earned its historical synonym \u003cstrong\u003eacmite\u003c\/strong\u003e, from the Greek word for \"point\". It crystallizes in sodium-rich alkaline igneous rocks such as nepheline syenites, carbonatites, and pegmatites, and its formula was first defined at its Norwegian type locality.\u003c\/p\u003e\u003cp\u003eThe species was first described from \u003cstrong\u003eRundemyr\u003c\/strong\u003e and \u003cstrong\u003eLåven\u003c\/strong\u003e in Norway, near \u003cstrong\u003eKongsberg\u003c\/strong\u003e, giving it its name after Ægir, the Norse sea god. Since then, exceptional aegirine has come from a handful of world-famous alkaline complexes: the classic black, freestanding prisms of \u003cstrong\u003eMont Saint-Hilaire\u003c\/strong\u003e in Quebec; the striking specimens on orthoclase and microcline from \u003cstrong\u003eMount Malosa\u003c\/strong\u003e in Malawi, which transformed collector interest in the species; and the acicular crystals intergrown with sodalite and feldspathoids from the \u003cstrong\u003eKhibiny\u003c\/strong\u003e and \u003cstrong\u003eLovozero massifs\u003c\/strong\u003e on the \u003cstrong\u003eKola Peninsula\u003c\/strong\u003e. Other notable localities include \u003cstrong\u003eMagnet Cove\u003c\/strong\u003e in Arkansas, the \u003cstrong\u003eIlímaussaq complex\u003c\/strong\u003e in Greenland, and \u003cstrong\u003eNarsarsuk\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eAegirine typically occurs alongside other alkaline-suite minerals such as \u003cstrong\u003enepheline\u003c\/strong\u003e, \u003cstrong\u003earfvedsonite\u003c\/strong\u003e, \u003cstrong\u003eeudialyte\u003c\/strong\u003e, \u003cstrong\u003eastrophyllite\u003c\/strong\u003e, \u003cstrong\u003ealbite\u003c\/strong\u003e, and \u003cstrong\u003esodalite\u003c\/strong\u003e, making combination specimens especially desirable. Collectors seek aegirine for its sharp crystal habit, dramatic matrix contrast, and its role as a signature accessory mineral of the world's great peralkaline intrusions.\u003c\/p\u003e","products":[{"product_id":"fa15-aegirine-malawi","title":"AEGIRINE – Spectacular 9.5cm Single Crystal, Mount Malosa, Malawi","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eNatural, single Aegirine crystal from the world-famous Mount Malosa locality, Malawi — the source that transformed this once-rare species into a sought-after collector mineral. An impressive 95mm, perfectly terminated, elongated crystal with intense dark color and excellent luster, uncommon on the market at this size and quality.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eMineral Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 95 × 25 × 25 mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 115 g\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eProvenance:\u003c\/strong\u003e Mount Malosa, Zomba, Southern Region, Malawi\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITALMINERAL","offers":[{"title":"Default Title","offer_id":45443848732781,"sku":null,"price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8027\/6333\/files\/IMG20260213215804.jpg?v=1783614923"}],"url":"https:\/\/www.italmineral.com\/collections\/aegirine.oembed","provider":"ITALMINERAL","version":"1.0","type":"link"}