The document discusses the use of a Barmac VSI crusher to manufacture sand from basalt rock for use in concrete in India. An Indian company was seeking to produce high quality manufactured sand to address issues with local natural sand supplies. Metso Minerals proposed installing a Barmac VSI crusher in a tertiary stage to crush the output from primary and secondary jaw crushers into sand and aggregate. Testing confirmed the Barmac sand produced higher quality concrete with reduced water and cement needs compared to natural sand alternatives. The Barmac installation was successful and generated additional sales opportunities in the region.