ʻO ka Diatomite kahi ʻano pōhaku siliceous, i hoʻolaha nui ʻia ma Kina, ʻAmelika Hui Pū ʻIa, Iapana, Denemaka, Farani, Romania a me nā ʻāina ʻē aʻe.He pōhaku sedimentary siliceous biogenic, i haku ʻia me nā koena o nā diatoms kahiko.ʻO SiO2 ka nui o kāna mea hoʻohui kemika, hiki ke hōʻike ʻia ʻo SiO2 · nH2O, a ʻo kona ʻano mineral he opal a me kāna mau ʻano.ʻO ka mālama ʻana o ka diatomite ma Kina he 320 miliona mau tons, a ʻoi aku ka nui o nā mea mālama ʻia ma mua o 2 biliona tons.

ʻO ka mānoanoa o ka diatomite he 1.9-2.3g/cm3, ʻo ka mānoanoa nui he 0.34-0.65g/cm3, ʻo ka ili kikoʻī he 40-65 ㎡/g, a ʻo ka nui pore he 0.45-0.98m ³/g.ʻO 2-4 mau manawa o ka hoʻoheheʻe ʻana i ka wai, a ʻo ka helu hoʻoheheʻe he 1650C-1750 ℃.Hiki ke ʻike ʻia ke ʻano porous kūikawā ma lalo o ka microscope electron.

Hoʻokumu ʻia ka Diatomite me ka SiO2 amorphous a loaʻa kahi wahi liʻiliʻi o Fe2O3, CaO, MgO, Al2O3 a me nā mea haumia.ʻO ka diatomite he melemele māmā a hina hina paha, palupalu, porous a māmā.Hoʻohana pinepine ia i ka ʻoihana e like me ka thermal insulation material, filter material, filler, abrasive material, water glass raw material, decolorizing agent, diatomite filter aid, catalyst carrier, etc. ʻO ka mea nui o ka diatomite kūlohelohe ʻo SiO2.He keʻokeʻo ka diatomite kiʻekiʻe, a ʻoi aku ka nui o ka SiO2 ma mua o 70%.ʻAʻole waihoʻoluʻu a ʻākala nā diatoms monomer.ʻO ka waihoʻoluʻu o ka diatomite e pili ana i nā minerala pālolo a me nā mea organik, a me nā mea ʻē aʻe.

ʻO ka diatomite kahi ʻano o ka fossil diatom accumulative deposit deposit i hoʻokumu ʻia ma hope o ka make ʻana o kahi mea kanu hoʻokahi-cell i kapa ʻia ʻo diatom ma hope o ka manawa hoʻohui ʻia ma kahi o 10000 a 20000 mau makahiki.ʻO Diatom kekahi o nā protozoa mua loa ma ka honua, e noho ana i loko o ke kai a i ʻole ka wai loko.

Hoʻokumu ʻia kēia diatomite e ka waiho ʻana o nā koena o ka diatom mea kanu wai hoʻokahi.ʻO ka hana kūʻokoʻa o kēia diatom, ʻo ia ka hiki ke hoʻopaʻa i ke silika manuahi i ka wai e hana i kona iwi.I ka pau ʻana o kona ola, e waiho ʻo ia i nā waihona diatomite ma lalo o kekahi mau kūlana honua.Loaʻa iā ia kekahi mau waiwai kūʻokoʻa, e like me ka porosity, ka haʻahaʻa haʻahaʻa, ka nui o ka ʻili ākea, ka incompressibility pili a me ke kūpaʻa kemika.Ma hope o ka hoʻololi ʻana i ka hāʻawi ʻana i ka nui o ka ʻāpana a me nā waiwai o ka lepo maka ma o ka wili ʻana, ka ʻohi ʻana, ka calcination, ka hoʻokaʻawale ʻana o ka ea, ka wehe ʻana i ka haumia a me nā kaʻina hana ʻē aʻe, hiki ke hoʻopili ʻia i nā koi ʻoihana like ʻole e like me nā additives pena.