Barite

Bildnummer 12634543
Barite
Barite is a mineral consisting of barium sulfate. It is generally white or colourless, and is the main source of barium. Barite occurs in a large number of depositional environments, and is deposited through a large number of processes including biogenic, hydrothermal, and evaporation. It commonly occurs in lead-zinc veins in limestones, in hot spring deposits, and with hematite ore, but also in meteorites. 77% of barite worldwide is used as a weighting agent for drilling fluids in oil and gas exploration to prevent blowouts. Other uses are in added-value applications like filler in paint, sound reduction in engine compartments, radiation-shielding cement, and medical applications. Historically barite was used for the production of barium hydroxide for sugar refining, and as a white pigment for paint. Although barite contains a heavy metal (barium), it is not a toxic chemical because of its extreme insolubility. It is also sometimes used as gemstone.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Winters, Charles D.
Bildgröße: 3650 px × 2866 px
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