Barite
Numéro d’image : 12634543
| 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. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Winters, Charles D. |
| Taille de l’image : | 3650 px × 2866 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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