Chalcopyrite Crystal Natural Peacock Ore Mineral Specimen
£ 8.40
CHALCOPYRITE CRYSTAL – NATURAL MINERAL SPECIMENThis Chalcopyrite crystal is a genuine natural mineral specimen, selected for
its metallic lustre, vibrant surface coloration, and display appeal. The photographs in the listing show the exact specimen you will receive. Please refer to the images for full sizing and scale details.Each crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine chalcopyrite mineral specimen. MINERAL SPECIES & CRYSTAL STRUCTUREChalcopyrite is a copper iron sulphide mineral with the chemical formula CuFeS₂. It crystallises in the tetragonal crystal system and commonly forms massive, granular, or occasionally well-formed tetrahedral or disphenoidal crystals.With a Mohs hardness of approximately 3.5–4, chalcopyrite is softer than many silicate minerals but is highly valued for its brassy metallic lustre and iridescent surface colours. It is one of the most important copper ore minerals and is widely studied in economic geology.Fresh chalcopyrite typically exhibits a rich brass-yellow metallic appearance. Over time, surface oxidation can produce iridescent tones of purple, blue, green, and gold, often referred to as “peacock ore” colouring. COLOUR, LUSTRE & NATURAL CHARACTERISTICSThis specimen displays classic chalcopyrite characteristics, including metallic shine and vibrant surface tones. The iridescent effect occurs naturally through oxidation processes when the mineral interacts with air and moisture over time.Surface textures may include natural crystal faces, granular formations, or minor contact points where the mineral grew against surrounding host rock. Internal fractures, inclusions, or surface variations are typical of sulphide minerals formed in hydrothermal environments.No artificial dyes or enhancements have been applied. The colours and surface features are naturally occurring as part of the mineral’s geological history. GEOLOGICAL FORMATIONChalcopyrite commonly forms in hydrothermal veins, magmatic sulphide deposits, and contact metamorphic environments. It develops when copper- and iron-rich fluids precipitate sulphide minerals within fractures and cavities in host rock.These mineralising fluids circulate through the Earth’s crust under elevated temperatures and pressures, depositing chalcopyrite alongside other sulphide minerals such as pyrite, sphalerite, and galena. Over time, tectonic activity and erosion expose these deposits at the surface.Chalcopyrite specimens are collected worldwide and are valued both for their economic importance and aesthetic metallic appearance. COLLECTING, DISPLAY & EDUCATIONAL VALUEA chalcopyrite crystal makes a striking addition to mineral cabinets, geology collections, or educational displays. Its metallic sheen and colourful surface oxidation create strong visual contrast under lighting.In some traditions, chalcopyrite is traditionally associated with creativity and confidence; however, it is primarily valued as a naturally formed copper sulphide mineral and a representative example of hydrothermal ore formation.This carefully chosen specimen is suitable for collectors of metallic minerals, students of geology, or as a distinctive natural gift. AUTHENTICITY & PRESENTATION• Genuine Chalcopyrite Crystal• Copper Iron Sulphide (CuFeS₂)• Tetragonal crystal system• Natural metallic lustre and surface coloration• Exact specimen shown in listing photographs• Includes Certificate of Authenticity lifetime guarantee generic card• Full measurements available in listing imagesA carefully selected natural chalcopyrite specimen showcasing metallic brilliance and classic sulphide mineral formation.
its metallic lustre, vibrant surface coloration, and display appeal. The photographs in the listing show the exact specimen you will receive. Please refer to the images for full sizing and scale details.Each crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine chalcopyrite mineral specimen. MINERAL SPECIES & CRYSTAL STRUCTUREChalcopyrite is a copper iron sulphide mineral with the chemical formula CuFeS₂. It crystallises in the tetragonal crystal system and commonly forms massive, granular, or occasionally well-formed tetrahedral or disphenoidal crystals.With a Mohs hardness of approximately 3.5–4, chalcopyrite is softer than many silicate minerals but is highly valued for its brassy metallic lustre and iridescent surface colours. It is one of the most important copper ore minerals and is widely studied in economic geology.Fresh chalcopyrite typically exhibits a rich brass-yellow metallic appearance. Over time, surface oxidation can produce iridescent tones of purple, blue, green, and gold, often referred to as “peacock ore” colouring. COLOUR, LUSTRE & NATURAL CHARACTERISTICSThis specimen displays classic chalcopyrite characteristics, including metallic shine and vibrant surface tones. The iridescent effect occurs naturally through oxidation processes when the mineral interacts with air and moisture over time.Surface textures may include natural crystal faces, granular formations, or minor contact points where the mineral grew against surrounding host rock. Internal fractures, inclusions, or surface variations are typical of sulphide minerals formed in hydrothermal environments.No artificial dyes or enhancements have been applied. The colours and surface features are naturally occurring as part of the mineral’s geological history. GEOLOGICAL FORMATIONChalcopyrite commonly forms in hydrothermal veins, magmatic sulphide deposits, and contact metamorphic environments. It develops when copper- and iron-rich fluids precipitate sulphide minerals within fractures and cavities in host rock.These mineralising fluids circulate through the Earth’s crust under elevated temperatures and pressures, depositing chalcopyrite alongside other sulphide minerals such as pyrite, sphalerite, and galena. Over time, tectonic activity and erosion expose these deposits at the surface.Chalcopyrite specimens are collected worldwide and are valued both for their economic importance and aesthetic metallic appearance. COLLECTING, DISPLAY & EDUCATIONAL VALUEA chalcopyrite crystal makes a striking addition to mineral cabinets, geology collections, or educational displays. Its metallic sheen and colourful surface oxidation create strong visual contrast under lighting.In some traditions, chalcopyrite is traditionally associated with creativity and confidence; however, it is primarily valued as a naturally formed copper sulphide mineral and a representative example of hydrothermal ore formation.This carefully chosen specimen is suitable for collectors of metallic minerals, students of geology, or as a distinctive natural gift. AUTHENTICITY & PRESENTATION• Genuine Chalcopyrite Crystal• Copper Iron Sulphide (CuFeS₂)• Tetragonal crystal system• Natural metallic lustre and surface coloration• Exact specimen shown in listing photographs• Includes Certificate of Authenticity lifetime guarantee generic card• Full measurements available in listing imagesA carefully selected natural chalcopyrite specimen showcasing metallic brilliance and classic sulphide mineral formation.
