Deep Blue Azurite Crystal Natural Copper Mineral Specimen
£ 36.00
DEEP BLUE AZURITE CRYSTAL – NATURAL COPPER CARBONATE MINERALThis Deep Blue Azurite crystal is a genuine natural mineral specimen, selected
for its intense colour saturation, well-defined crystal formation, and strong visual presence. 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 azurite specimen. MINERAL SPECIES & CRYSTAL STRUCTUREAzurite is a copper carbonate hydroxide mineral with the chemical formula Cu₃(CO₃)₂(OH)₂. It crystallises in the monoclinic crystal system and can form prismatic, tabular, or bladed crystals, as well as botryoidal or massive aggregates.With a Mohs hardness of 3.5–4, azurite is relatively soft compared to many silicate minerals but is highly valued for its exceptional deep blue colour. It displays a vitreous to silky lustre depending on crystal habit and surface texture.Individual crystals may exhibit sharp terminations, striations, or radiating clusters. In massive or botryoidal forms, curved surfaces reflect layered mineral growth within cavities. COLOUR, LUSTRE & NATURAL CHARACTERISTICSThe deep blue colour of azurite is caused by the presence of copper within its crystal lattice. High-quality specimens display rich navy to royal blue tones, often appearing almost velvety under certain lighting conditions.Natural variations in colour intensity may occur across the surface due to subtle changes in mineral chemistry during formation. Minor inclusions, matrix attachments, or small surface irregularities are typical features of naturally formed azurite.Azurite may occasionally occur in association with malachite, forming green-blue transitional zones as azurite gradually alters through weathering processes. This specimen has not been dyed or artificially enhanced. GEOLOGICAL FORMATIONAzurite forms as a secondary mineral in the oxidation zones of copper ore deposits. When primary copper sulphide minerals such as chalcopyrite or bornite are exposed to oxygen and carbonated groundwater, chemical reactions result in the formation of copper carbonate minerals including azurite and malachite.This process occurs near the Earth’s surface in environments where copper-rich fluids interact with limestone or carbonate host rocks. Slow precipitation within cavities and fractures allows crystals to develop distinctive shapes and intense colouration.Azurite is commonly found in association with malachite, calcite, limonite, and other secondary copper minerals within oxidised ore zones. COLLECTING, DISPLAY & EDUCATIONAL VALUEA deep blue azurite specimen is a standout piece in any mineral collection. Its vivid copper-blue colour and defined crystal habit make it a visually striking display mineral.As a secondary copper carbonate mineral, azurite is significant in both mineralogy and economic geology. Its monoclinic crystal system and oxidation-zone origin provide educational value for collectors and students of mineral formation.In some traditions, azurite is traditionally associated with insight and clarity; however, it is primarily appreciated as a naturally occurring copper carbonate mineral known for its remarkable colour. AUTHENTICITY & PRESENTATION• Genuine Deep Blue Azurite Crystal• Copper Carbonate Hydroxide Cu₃(CO₃)₂(OH)₂• Monoclinic crystal system• Natural, untreated mineral specimen• Exact specimen shown in listing photographs• Includes Certificate of Authenticity lifetime guarantee generic card• Full measurements available in listing imagesA carefully selected deep blue azurite crystal showcasing classic copper mineral formation and the rich colour produced through natural oxidation processes.
for its intense colour saturation, well-defined crystal formation, and strong visual presence. 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 azurite specimen. MINERAL SPECIES & CRYSTAL STRUCTUREAzurite is a copper carbonate hydroxide mineral with the chemical formula Cu₃(CO₃)₂(OH)₂. It crystallises in the monoclinic crystal system and can form prismatic, tabular, or bladed crystals, as well as botryoidal or massive aggregates.With a Mohs hardness of 3.5–4, azurite is relatively soft compared to many silicate minerals but is highly valued for its exceptional deep blue colour. It displays a vitreous to silky lustre depending on crystal habit and surface texture.Individual crystals may exhibit sharp terminations, striations, or radiating clusters. In massive or botryoidal forms, curved surfaces reflect layered mineral growth within cavities. COLOUR, LUSTRE & NATURAL CHARACTERISTICSThe deep blue colour of azurite is caused by the presence of copper within its crystal lattice. High-quality specimens display rich navy to royal blue tones, often appearing almost velvety under certain lighting conditions.Natural variations in colour intensity may occur across the surface due to subtle changes in mineral chemistry during formation. Minor inclusions, matrix attachments, or small surface irregularities are typical features of naturally formed azurite.Azurite may occasionally occur in association with malachite, forming green-blue transitional zones as azurite gradually alters through weathering processes. This specimen has not been dyed or artificially enhanced. GEOLOGICAL FORMATIONAzurite forms as a secondary mineral in the oxidation zones of copper ore deposits. When primary copper sulphide minerals such as chalcopyrite or bornite are exposed to oxygen and carbonated groundwater, chemical reactions result in the formation of copper carbonate minerals including azurite and malachite.This process occurs near the Earth’s surface in environments where copper-rich fluids interact with limestone or carbonate host rocks. Slow precipitation within cavities and fractures allows crystals to develop distinctive shapes and intense colouration.Azurite is commonly found in association with malachite, calcite, limonite, and other secondary copper minerals within oxidised ore zones. COLLECTING, DISPLAY & EDUCATIONAL VALUEA deep blue azurite specimen is a standout piece in any mineral collection. Its vivid copper-blue colour and defined crystal habit make it a visually striking display mineral.As a secondary copper carbonate mineral, azurite is significant in both mineralogy and economic geology. Its monoclinic crystal system and oxidation-zone origin provide educational value for collectors and students of mineral formation.In some traditions, azurite is traditionally associated with insight and clarity; however, it is primarily appreciated as a naturally occurring copper carbonate mineral known for its remarkable colour. AUTHENTICITY & PRESENTATION• Genuine Deep Blue Azurite Crystal• Copper Carbonate Hydroxide Cu₃(CO₃)₂(OH)₂• Monoclinic crystal system• Natural, untreated mineral specimen• Exact specimen shown in listing photographs• Includes Certificate of Authenticity lifetime guarantee generic card• Full measurements available in listing imagesA carefully selected deep blue azurite crystal showcasing classic copper mineral formation and the rich colour produced through natural oxidation processes.
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