Black sand can be seen as a layer on top of silica sand in regions with high wave energy, on the flanks of volcanoes, and in areas where most of the source rock is mafic, or dark-colored and poor in silica. It can be composed of a number of different dark minerals, most are iron-rich and heavier than silica sand.
While some beaches are predominantly made of black sand, even other colour beaches can often have deposits of black sand, particularly after storms. Larger waves can sort out sand grains leaving deposits of heavy minerals visible on the surface of erosion scarps.
Black sand is a combination of a variety of materials such as lead carbonites, hematite and iron. The variations of this dark-colored sand are numerous, so these metallic combinations are referred to as "black sand." Gold, minerals and gemstones are often found in black sand, so miners search for it as a way to find these other items.
To get the valuable miateral, the black sand will be first crushed for liberation. Crushing generally is carried out in oneor two stages, although three-stage crushing may also be performed. Jaw crusher, impact crusher, or gyratory crushers are usually used for initial reduction. Cone crushers are commonly used for secondary crushing. The crushed black sand will be returned to the screening operation for sizing.
Zenith has seen the need to develop crushing systems and process to assist our customers to find a market for high quality manufactured sand. We have been optimized the sand crushing solutions according to customer feedback and field success.
The black sand crusher machine for sale in China includes jaw crusher, impact crusher, cone crusher, gyratory crusher, VSI crusher etc. The black sand crusher machine provides high energy efficiency and capacity, good product gradation, a high reduction ratio and low sensitivity to rock hardness.
If you are interested, please chat online with us for free. No matter you need a single machine, or a complete production line, we will provide you best service.
Simply complete the form below, click submit, you will get the price list and a Zenith representative will contact you within one business day. Please also feel free to contact us by email or phone.