Ƙasa mai siffar siliceous wani nau'in dutse ne da aka fi samu a ƙasashe kamar China, Amurka, Japan, Denmark, Faransa, Romania, da sauransu. Dutse ne mai siffar siliceous mai siffar siliceous wanda galibi ya ƙunshi ragowar tsoffin diatoms. Sinadarin sinadaransa galibi SiO2 ne, wanda SiO2 · nH2O za a iya wakilta shi, kuma ma'adinansa opal ne da nau'ikansa. Tanadar ƙasa mai siffar diatomaceous a China tana da tan miliyan 320, tare da tanadin da ake tsammanin ya kai tan biliyan 2, galibi yana da yawa a Gabashin China da Arewa maso Gabashin China. Daga cikinsu, Jilin (54.8%, tare da Birnin Linjiang da ke Lardin Jilin shine wurin ajiyar farko da aka tabbatar a Asiya), Zhejiang, Yunnan, Shandong, Sichuan, da sauran larduna suna da yaɗuwa sosai, amma ƙasa mai inganci tana da yawa ne kawai a yankin Dutsen Changbai na Jilin, kuma yawancin sauran ma'adanai ƙasa ce mai matsayi na 3-4. Saboda yawan ƙazanta, ba za a iya sarrafa ta kai tsaye da amfani da ita ba. Babban ɓangaren ƙasa mai siffar diatomaceous a matsayin mai ɗaukar kaya shine SiO2. Misali, bangaren da ke aiki a cikin sinadarin vanadium mai kara kuzari na masana'antu shine V2O5, sinadarin co mai kara kuzari shine sinadarin alkali metal sulfate, kuma mai kara kuzari shine duniyar diatomaceous mai kara kuzari. Gwaje-gwaje sun nuna cewa SiO2 yana da tasirin daidaita abubuwa masu aiki kuma yana karuwa tare da karuwar abun ciki na K2O ko Na2O. Aikin mai kara kuzari yana da alaƙa da tsarin wargajewa da kuma tsarin ramin mai kara kuzari. Bayan maganin acid na kasar diatomaceous, abun da ke cikin gurbataccen oxide yana raguwa, abun da ke cikin SiO2 yana karuwa, kuma takamaiman yankin saman da girman ramin suma suna karuwa. Saboda haka, tasirin mai kara kuzari na kasar diatomaceous mai kara kuzari ya fi na kasar diatomaceous ta halitta kyau.

Ana samar da ƙasa mai siffar diatomaceous daga ragowar silicate bayan mutuwar algae mai tantanin halitta ɗaya, wanda aka fi sani da diatoms, kuma ainihinsa shine SiO2 mai siffar ruwa mai kama da ruwa. Diatoms na iya rayuwa a cikin ruwan sha da ruwan gishiri, tare da nau'ikan iri-iri. Gabaɗaya ana iya raba su zuwa diatoms na "tsakiya" da diatoms na "tsakiya", kuma kowane tsari yana da "nau'i" da yawa waɗanda suke da rikitarwa.

Babban sinadarin ƙasa mai siffar diatomaceous na halitta shine SiO2, inda masu inganci masu launin fari da kuma yawan sinadarin SiO2 galibi ya wuce 70%. Diatom guda ɗaya ba su da launi kuma suna da haske, kuma launin ƙasa mai siffar diatomaceous ya dogara ne akan ma'adanai na yumbu da kuma abubuwan halitta. Tsarin ƙasa mai siffar diatomaceous daga ma'adanai daban-daban ya bambanta.

Duniyar Diatomaceous, wacce aka fi sani da diatom, wani tarin diatom ne da aka samo bayan mutuwar wata shuka mai ƙwayoyin halitta guda ɗaya da kuma lokacin adanawa na kimanin shekaru 10,000 zuwa 20,000. Diatoms suna ɗaya daga cikin farkon halittun asali da suka bayyana a Duniya, suna rayuwa a cikin ruwan teku ko ruwan tafki.

Wannan nau'in ƙasa mai siffar diatomaceous ana samar da ita ne ta hanyar ajiye ragowar diatomaceous na tsire-tsire masu ƙwayoyin halitta guda ɗaya. Babban aikin wannan diatomaceous shine yana iya shanye silicon kyauta a cikin ruwa don samar da ƙasusuwansa. Lokacin da rayuwarsa ta ƙare, yana ajiyewa kuma yana samar da diatomaceous earth a ƙarƙashin wasu yanayi na ƙasa. Yana da wasu halaye na musamman, kamar porosity, ƙarancin yawan abu, babban yanki na musamman na saman, rashin matsewa, da kwanciyar hankali na sinadarai. Bayan canza rarraba girman barbashi da halayen saman ƙasa na asali ta hanyar proc.Tsarin essing kamar murkushewa, rarrabuwa, calcination, rarrabuwar iska, da cire ƙazanta, yana iya dacewa da buƙatun masana'antu daban-daban kamar su shafa da ƙarin fenti.