Vermiculite yowonjezera ili ndi mawonekedwe a porous, kulemera kochepa komanso malo osungunuka kwambiri.Ndizoyenera kwambiri pazinthu zotchinjiriza zotentha (pansi pa 1000 ℃) ndi zida zotchinjiriza moto.Pambuyo kuyesera, 15 masentimita wandiweyani simenti mbale vermiculite anawotchedwa pa 1000 ℃ kwa maola 4-5, ndi kutentha kumbuyo anali pafupifupi 40 ℃.Mbale ya vermiculite ya masentimita asanu ndi awiri imawotchedwa kwa mphindi zisanu pa kutentha kwakukulu kwa 3000 ℃ kupyolera mu ukonde wowotcherera moto.Mbali yakutsogolo imasungunuka, ndipo kumbuyo sikumatenthabe ndi manja.Chifukwa chake chimaposa zida zonse zotchinjiriza.Monga asibesitosi, zinthu za diatomite, etc.