A clay or rock dominated by sepiolite. There are two types of genesis, one is hydrothermal type and the other is sedimentary type. The former contains more than 80% -90% sepiolite, followed by a small amount of quartze, dolomite, caldte, opal, mica, talc, etc. Most of this type of sepiolite ore can not reach the mining value because of its small scale.
Natural materials and products -> Mineral materials