Dramatic Stibnite Crystal Cluster on Matrix Mineral Specimen.This is a striking photograph of a Stibnite mineral specimen, showcasing a dense cluster of grey, needle-like crystals erupting from a dark, rocky matrix. The image captures the dramatic formation of countless elongated, prismatic crystals, characteristic of Stibnite, which jut out in all directions creating a spiky, visually arresting texture. The crystals exhibit a dark grey color with a sub-metallic luster. The entire formation rests on a clean white plinth within a museum display, a setting that emphasizes the specimen's complex structure and formidable appearance. This photograph was taken at the Chongqing Natural Resources Science Popularization Museum.Characteristics and Uses:Stibnite is a sulfide mineral with the chemical formula Sb 2? S 3? and is the most important ore of the metalloid antimony. It is known for its distinct crystal habit, forming slender, metallic grey prisms that can be intricately striated. Stibnite is exceptionally soft, with a Mohs hardness of only 2, meaning it can be scratched with a fingernail. The primary use of stibnite is for the extraction of antimony, a strategic metal used to create alloys that increase the hardness and strength of other metals, particularly lead for use in batteries. Antimony compounds are also vital as flame retardants in plastics, textiles, and rubber. Historically, powdered stibnite was used as the cosmetic kohl. Today, well-formed specimens are highly sought-after by mineral collectors for their unique and dramatic beauty.
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