Peb feem ntau hais tias granite "yeej yuav tsis ploj mus". Tab sis hauv lub sijhawm ntev, granite pob zeb yuav ploj mus, nws tsuas yog sijhawm. Cov chaw tshwj xeeb hauv tsev, plaub fab, thiab lwm yam tseem cuam tshuam los ntawm kev tiv thaiv cua thiab tiv tshav. Piv txwv, liab granite yuav ploj mus tom qab 10 hnub thiab ib nrab lub hlis ntawm raug tshav.
Cov zaub mov hauv cov granite no feem ntau yog feldspar, quartz, mica, pyroxene, thiab amphibole. Hauv cov qauv silicate loj, txhua lub silicon ion puag ncig plaub ions oxygen, ua rau silicon-oxygen tetrahedron. Tus txheej txheem theem pib no yog qhov ruaj khov nyob rau hauv cov xwm, muaj zog tiv taus cov kua qaub thiab alkalis, tsis yooj yim rau yaj, tiv taus huab cua, thiab zoo hauv kev tshem tawm.
Kev tshem tawm ntawm granite kuj txawv nrog hom pob zeb. Feem ntau hais lus, tsaus nti thiab ntais granite yog yooj yim rau ploj, vim hais tias cov ntxhia muaj pes tsawg leeg (piv txwv li dub, tsaus ntsuab) granite yog mas pyroxene, amphibole, yooj yim plagioclase, magnetite Tos. Lub teeb xim granite yog feem ntau yog acid plagioclase, potash feldspar, biotite, thiab quartz. Cov ntxhia hauv av feem ntau tsim nyob rau hauv av, nrog qee cov minerals ua thawj thiab lwm tus tom qab.
Cov uas tau tsim ua ntej yuav yog cov khoom hnyav nrog lub cev nyhav dua li cov atomic hnyav, cov chaw sib sib zog nqus, cov pa oxygen tsawg dua, thiab muaj qhov cuam tshuam loj dua; rov qab tsim los tom qab. Yog li no, cov zaub mov sib txawv feem ntau muaj cov sijhawm sib txawv, thiab lawv cov xaj yog ntxhib: cov zaub mov tsaus: olivine-pyroxene-hornblende-biotite; cov zaub mov muaj lub teeb xim: cov ntsiab lus plagioclase-acid plagioclase-potassium Pob zeb-quartz. Tom qab cov pob zeb tsim ua ntej raug rau saum npoo, vim qhov hloov loj ntawm thaj chaw ib puag ncig, kev hloov pauv thib ob yog ib qho yooj yim tshwm sim, thiab tom qab ntawd cov neeg ua haujlwm hloov pauv qis dua. Qhov feem ntau ruaj khov yog quartz.
Lwm qhov xwm txheej yog tias cov pob zeb hauv av theem nrab yog ntau cov kev fading dua li thawj cov zaub mov, xws li ntsuab thiab nyom-ntsuab kho kom zoo nkauj cov ntoo ua ke nrog chlorite yog cov khoom tseem ceeb. Tom qab 5 txog 10 xyoo, xim muaj kuj faded, tab sis nws zoo li marble. Los ntawm qhov sib piv, qhov hloov pauv no tseem muaj zog heev. Kev hloov xim (fading) tseem cuam tshuam nrog ib puag ncig. Yog tias cov kua qaub thiab alkali ntsiab lus nyob hauv huab cua ntawm thaj chaw muaj kev lag luam siab, nws yuav yooj yim hloov thiab thim. Qib ntawm kev txij nkawm kuj tseem ceeb.
Marble yog tsuas yog tsim ntawm calcite, dolomite thiab lwm yam minerals. Cov tshuaj molecular ntawm calcite yog CaCO3, thiab dolomite yog CaMg [CO3] 2. Ob leeg muaj carbonate [CO3] ions. Nws yog tus nquag thiab muaj kev cuam tshuam yooj yim nrog leej faj cov pa hauv huab cua los tsim gypsum (Ca [SO4] .2H2O). Tej feem. Calcite yooj yim cuam tshuam nrog dej los tsim calcium bicarbonate (Ca [HCO3] 2), uas yog yaj hauv dej, thiab tom qab ntawd hloov mus rau calcium carbonate thaum dej poob. Tom qab cov kev hloov pauv no, lub qub crystal polished nto ntawm marble polished phaj tsis muaj lawm. Yog li, nws tsis haum rau siv marble rau sab nrauv phab ntsa kho kom zoo nkauj, tshwj xeeb tshaj yog rau cov khoom siv kho kom zoo nkauj nraum zoov. Raws li cov pob zeb ci ntawm cov phab ntsa sab nrauv, xim yuav hloov feem ntau tom qab 2 txog 3 xyoos.