Anhydrite kev paub

Fluogypsum yog hluavtaws anhydrite, zoo ib yam nyob rau hauv muaj pes tsawg leeg rau tej yam ntuj tso gypsum, dav siv, lub ntsiab ntau lawm ntawm lub tsev cov ntaub ntawv. Anhydrite yog crystalline ntxhia, tshuaj calcium sulphate - CaSO4. Zoo li lwm yam evaporite minerals, nws yog tsim los ntawm deposition ntawm brine nyob rau hauv sedimentation basins. Tsis zoo li gypsum, uas yog hydrated, anhydrite tsis muaj dej. Cov khoom siv dav siv hauv kev lag luam thiab tseem siv rau hauv kev tsim cov khoom siv hauv tsev xws li cov cement, anhydrite screed lossis ceramics, tab sis kuj tseem siv hauv kev ua liaj ua teb hauv kev tsim cov chiv lossis sulfuric acid. Peb paub gypsum nyob rau hauv ob qho tib si ntuj thiab dag daim ntawv. Lwm yam khoom siv dag zog yog anhydrite, uas feem ntau yog tsim los ntawm cov khoom siv hluav taws xob hauv thermal fais fab nroj tsuag, hauv kev tsim cov citric acid los yog los ntawm gypsum hloov dua siab tshiab vim lub cev qhuav dej. Cov khoom no tsis muaj dej, yog li nws nyuaj thiab yooj yim dua rau crush. Ib qho ntawm nws qhov zoo yog tias nws muaj tshuaj lom neeg ruaj khov. Visually koj yuav paub nws los ntawm qhov tseeb hais tias nws yog ib tug zoo hmoov uas, thaum tov nrog dej, zoo li poov xab. Tsis zoo li anhydrite, ntuj gypsum muaj dej. Cov khoom ua kua ua kom cov khoom yog softer, thiab qhov no kuj pab txhawb kev mining hauv cov quarries. Raws li nrog rau lwm cov ntaub ntawv ntuj, gypsum thiab anhydrite stocks yog txwv cov peev txheej, uas txhais tau hais tias yuav tsum tsom mus rau lwm cov ntaub ntawv mus tom ntej.