High quality, sea source Diatomite at competitive prices with trust worthy and reliable Australian service. SiO2 - 86; Al203 - 8.27; CaO - 1.43; Fe203 - 3.3; MgO - 1.33; S03 - 0.03, H20 - 5.67; LOI - 4.45. The diatomite is of a sea source with an average Silica (SiO2) content of 86% which had accumulated during the Cretaceous period (142-97 million years ago). Our Diatomite is extracted, refined and packaged in the Kaluga region of the Russian Federation, located 140 km South West of Moscow. We are able to supply up to 20, 000 tons per month anywhere in the world, in various forms (powders & crumbs) and in different packaging according to our customers specifications and requirements.