Cenosphere(floating bead) imhando yenhunzi inobhururuka bhora rinokwanisa kuyangarara pamusoro pemvura.Ichena grey, nhete uye ine mhango ine huremu hwakareruka.Huremu hwayo huremu 720kg / m3 (huremu hunorema), 418.8kg/m3 (huremu huremu), saizi yechikamu inenge 0.1mm, nzvimbo yaro yakavharwa uye yakatsetseka, kupisa kwayo kudiki, uye kupisa kwayo kwemoto kuri ≥ 1610 ℃.Iyo yakanaka tembiricha inochengeta refractory zvinhu, inoshandiswa zvakanyanya mukugadzira malight castables uye kuchera mafuta.