Kev tshuaj xyuas cov yam ntxwv ntawm granite pom hniav
Granite saw hniav thiab marble yog pob zeb nrov thiab tau siv dav hauv architecture. Tab sis qhov sib txawv ntawm no granite pom hniav thiab marble tseem tuaj yeem ua tau zoo heev qhov tseem ceeb faib tawm zoo li cov qauv sab, granite pom hniav qauv yog speckled, marble qauv qhia cov xim xim, tshwj xeeb tshaj yog zoo nkauj. Nyob rau hauv cov nqe lus ntawm lub hardness ntawm pob zeb, marble yog mos pob zeb, thiab granite pom hniav yog nruab nrab thiab tawv pob zeb. Hais txog hardness, granite pom hniav yog me ntsis zoo dua. Hais txog pob zeb ntau yam, marble yog metamorphosis, thaum granite pom hniav yog firestone. Tsis tas li ntawd, marble yog cov yeeb yuj thiab muaj yeeb yuj, thaum granite hniav feem ntau yog grey lossis dawb.
Marble yog lub pob zeb zoo li carbonate uas metamorphoses lossis accumulates. Cov ntaub so ntswg zoo, khoom, polishable, muaj ntau yam xim, muaj xim zoo nkauj, thiab cov hluav taws xob me me. Marble hniav feem ntau yog siv rau kev kho kom zoo nkauj sab hauv vim tias lawv yog huab cua-resistant thiab tsis tshua siv sab nraum zoov. Vim hais tias marble zoo nkauj dua, nws cov qauv nplua nuj, xim me me thiab lwm yam zoo, tom qab tso ua cov pov tseg zoo yuav tshwm sim ntau dua, nplua nuj thiab zoo nkauj. Qhov no ua rau kev thov ntau dua rau kev ua cov marble, thiab qhov kev thov rau marble saw hniav txiav yog ntau dua li qhov kev thov rau granite saw hniav. Tsis tuaj yeem nthuav tawm qhov tshwm sim ntawm kev sib tsoo ntug, kaum.
Granite saw hniav hardness yog loj, nyob rau tib lub sij hawm kho zoo dua. Tab sis muab cov neeg txias txias, feem ntau siv sab nraum zoov lossis cov chaw pej xeem hauv huab cua thiab phab ntsa. Yog li feem ntau cov neeg siv khoom thov rau granite hniav txiav qhov tseeb tsis yog siab li marble hniav.
