{"product_id":"iron-cross-pyrite-crystal-colombia","title":"Pyrite Iron Cross Twin – Colombia","description":"\u003ch4\u003eAbout This Specimen\u003c\/h4\u003e\u003cp\u003eThis Colombian pyrite displays the interpenetrating geometry associated with the iron-cross twin form. Its compact, blocky shape is defined by strongly striated faces, deep geometric recesses, and a dark metallic surface that flashes silver and muted bronze under direct light.\u003c\/p\u003e\u003ch4\u003eSpecimen Details\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral \/ Specimen Type:\u003c\/strong\u003e Pyrite iron-cross twin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocality:\u003c\/strong\u003e Colombia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm \u0026amp; Structure:\u003c\/strong\u003e Interpenetrant twinned crystal with blocky geometry, stepped striations, and natural surface pitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Dark steel-gray to brown-black with silvery reflections and subdued bronze highlights\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRarity:\u003c\/strong\u003e Uncommon crystal form; pyrite is common as a species, but distinct iron-cross twins are less frequently encountered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs Hardness:\u003c\/strong\u003e 6–6.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLuster:\u003c\/strong\u003e Metallic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Formula:\u003c\/strong\u003e FeS\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecimen Size:\u003c\/strong\u003e Toenail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 3.6 × 3.6 × 3.8 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecimen Weight:\u003c\/strong\u003e 113.3 g — mineral only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal \/ Display Weight:\u003c\/strong\u003e 161.7 g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Pyrite\u003c\/h4\u003e\u003cp\u003ePyrite is an iron sulfide mineral that crystallizes in the cubic system and commonly forms cubes, pyritohedra, and striated combinations. “Iron cross” describes a recognizable interpenetrant twinning pattern rather than a separate mineral species; pyrite has the formula FeS\u003csub\u003e2\u003c\/sub\u003e and a Mohs hardness of 6–6.5.\u003c\/p\u003e\u003ch4\u003eTraditional \u0026amp; Metaphysical Associations\u003c\/h4\u003e\u003cp\u003eIn crystal traditions, pyrite is associated with confidence, determination, protection, and focused intention. Its metallic appearance and orderly geometry also make it popular for meditation spaces and symbolic displays. \u003cem\u003eMetaphysical properties are based on traditional beliefs and are provided for cultural and informational purposes; they are not scientifically established or intended as medical advice.\u003c\/em\u003e\u003c\/p\u003e\u003ch4\u003eWhy This Specimen?\u003c\/h4\u003e\u003cp\u003eThe pronounced cross-like intergrowth, layered face striations, and substantial weight give this miniature specimen a strong sculptural presence. Its unusually dark metallic finish emphasizes the crystal's angular silhouette and reflective edges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExact specimen pictured.\u003c\/strong\u003e You will receive the exact specimen shown in the photographs.\u003c\/p\u003e","brand":"Mineral Treasury","offers":[{"title":"Default Title","offer_id":53372011676015,"sku":"MT-0047","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/7563\/6335\/files\/colombia-iron-cross-pyrite-front.jpg?v=1787790804","url":"https:\/\/mineraltreasury.com\/products\/iron-cross-pyrite-crystal-colombia","provider":"Mineral Treasury","version":"1.0","type":"link"}