Ntawm cov khoom me me uas ua rau granite, ntau tshaj 90% yog feldspar thiab quartz, uas feldspar yog qhov ntau tshaj plaws. Lub feldspar feem ntau yog dawb, grey, thiab nqaij-liab, thiab lub quartz feem ntau yog tsis muaj xim lossis greyish dawb, uas yog cov xim yooj yim ntawm granite. Feldspar thiab quartz yog cov minerals tawv, thiab nws nyuaj rau txav nrog riam hlau. Raws li rau cov chaw tsaus nti hauv granite, feem ntau yog dub mica, muaj qee cov minerals lwm yam. Txawm hais tias biotite yog mos mos, nws lub peev xwm los tiv taus kev ntxhov siab tsis yog qhov tsis muaj zog, thiab tib lub sijhawm lawv muaj me me hauv granite, feem ntau tsawg dua 10%. Qhov no yog cov khoom siv uas granite muaj zog tshwj xeeb.
Lwm qhov laj thawj uas ua rau granite muaj zog yog vim nws cov khoom siv hauv av tau khi ua ke thiab sib koom ua ke. Cov qhov hws feem ntau suav txog tsawg dua 1% ntawm tag nrho cov pob zeb. Qhov no ua rau granite muaj peev xwm tiv taus qhov siab thiab tsis yooj yim nkag mus los ntawm cov dej noo.
Lub sijhawm tshaj tawm: Tsib Hlis-08-2021