Ho itšetlehile ka temana e fanoeng, thathamisa litšobotsi tse ling tsa perela.
Context:Perela ke ntho e thata, e benyang e hlahisoang ka har'a lisele tse bonolo (haholo-holo seaparo sa ka ntle) sa mollusk e nang le khetla e phelang kapa phoofolo e 'ngoe, e kang li-conulariid tsa khale. Feela joaloka khetla ea mollusk, perela e entsoe ka calcium carbonate (haholo-holo aragonite kapa motsoako oa aragonite le calcite) e leng kristale e nyenyane, e bokellaneng ka mekhahlelo e tšoanang. Perela e ntle ka ho fetisisa e chitja ebile e boreleli, empa ho ka hlaha mefuta e meng e mengata, e tsejoang e le liperela tsa baroque. Ka makholo a lilemo, liperela tsa tlhaho tsa boleng bo phahameng li 'nile tsa nkoa e le tsa bohlokoa haholo e le mahakoe le lintho tse khabisang. Ka lebaka lena, perela e fetohile papiso ea ntho e' ngoe e sa tloaelehang, e ntle, e babatsehang le ea bohlokoa.
1. Perela ke ntho e phatsimang le e thata e hlahisoang ka har'a khetla ea mollusk kapa likhetla tse ling. 2. Joaloka likhetla, liperela le tsona li entsoe ka calcium carbonate. 3. Perela e ntlehali e chitja ka ho phethahetseng ebile e boreleli, empa e ka ba le libopeho tse sa tšoaneng joaloka liperela tsa baroque. 4. Liperela tsa tlhaho tsa boleng bo phahameng ka ho fetisisa li nkoa e le majoe a bohlokoa. 5. Kaha liperela li ntle, ha li fumanehe hangata ebile ke tsa bohlokoa, e fetohile papiso.