Basalt muka karekau

Ko te muka muka Basalt he mea whatu e te muka basalt tonu, he ngohengohe, he ngawari te whakawhaanui, he roa me te taumaha ngawari. Ka whakarato i te otinga hangarau hopea mo te waahi whakamahana waiariki, te waahanga whakatika paipa tae atu ki te waahi hauora
■ Rahi: 1 inihi ki te 6 inihi e waatea ana.
■ Te awangawanga o te mahana tonu ki te 700 tohu centigrade kaore he rereketanga o te mahi.