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zoo tshaj txhua hnub Ci ntsa iab nthuav perlite rau muag
Ci ntsa iab nthuav dav perlite yog ib hom qauv ntxeem tau, dawb, cov khoom xoob ua los ntawm acidic volcanic vitreous lava los ntawm kev sib tsoo, ua kom sov, ci thiab nthuav dav. Nws muaj lub peev xwm me, tsis muaj cua sov ua kom sov, muaj tshuaj lom neeg ruaj khov, tsis kub hnyiab, tsis kub hnyiab thiab tsis kub hnyiab. Cov tshuaj lom, tsis hnov tsw, nqus suab thiab lwm yam ntxwv.
