Cov tsos mob: Cov khoom yog tiaj tus, obliquely square, los yog irregularly zoo li tus, sib txawv loj. Nws yog dawb kiag li, qe xiav, los yog daj -dawb, nrog pearly luster, thiab yog translucent los yog opaque. Nws yog mos thiab zoo -grained, zoo nkaus li du rau qhov kov, thiab tuaj yeem khawb tawm nrog tus ntiv tes. Nws muaj ntxhiab tsw, tsis qab, thiab muaj qhov txias me ntsis.
Microscopic Identification: Nyob rau hauv ib qho kev sib kis polarizing microscope, cov seem nyias yog xim tsis muaj xim thiab pob tshab, nrog rau qhov tsis tshua muaj txiaj ntsig zoo, ze li ntawm qhov sib npaug, thiab ib qho tshwj xeeb refractive index range.
Chemical Identification: Cov muaj pes tsawg leeg thiab cov khoom ntawm talc tuaj yeem lees paub ntxiv los ntawm txoj hauv kev xws li kev txheeb xyuas silicon, kev txheeb xyuas magnesium, thiab infrared spectroscopy.
