Kapeng syderolite deposit is large,occurred in purple clayey ferruginous mudstone and grey-green clayey shale of Lower Silurian series.

卡棚大型紫砂陶矿主要赋存系下紫红质含铁泥岩和灰绿质页岩中,分上下2个含矿岩系,4个矿层。