About Us : J. Crooks & Sons Ltd. privately owned quarrying company that was established in 1936. We currently supply finely ground dunite to the fertiliser industry. We also take on contract crushing jobs for the roading industry with our mobile crushing plants.
Product/Service : We quarry a dunite rock. It is 40% magnesium oxide. The primary minerology is magnesium rich olivine., Magnesium Rich Olivine, Magnesium Oxide