Qhov txawv ntawm Granite Pom Hniav thiab Marble Pom Hniav yog Expounded

Granite saw hniav thiab marble saw hniav yog pob zeb muag zoo tshaj plaws thiab siv hauv tsev. Tab sis qhov sib txawv ntawm no granite pom hniav thiab marble pom hniav tuaj yeem ua tau zoo heev tseem ceeb faib tawm zoo li ib sab qauv, granite pom hniav qauv yog speckled, marble pom hniav qauv qhia tau hais tias xim xim, tshwj xeeb tshaj yog zoo nkauj. Nyob rau hauv cov nqe lus ntawm lub hardness ntawm lub pob zeb, marble pom hniav yog mos pob zeb, thiab granite pom hniav yog nruab nrab hard pob zeb. Hais txog hardness, granite pom hniav yog me ntsis zoo dua. Hais txog pob zeb ntau yam, marble pom hniav yog cov pob zeb metamorphic, thaum granite hniav yog cov pob zeb hluav taws. Tsis tas li ntawd, marble hniav tuaj nyob rau hauv ntau yam xim, thaum granite hniav feem ntau yog grey los yog dawb.

Txiav lub granite saw hniav:

Marble pom hniav yog cov pob zeb zoo li carbonate uas metamorphose lossis sib sau. Cov ntaub so ntswg zoo, khoom, polishable, muaj ntau yam xim, muaj xim zoo nkauj, thiab cov hluav taws xob me me. Marble saw hniav feem ntau siv rau kev kho kom zoo nkauj sab hauv vim lawv muaj huab cua tiv taus thiab tsis tshua siv sab nraum zoov. Vim hais tias marble pom hniav zoo nkauj dua li zoo nkauj, nws cov qauv yog nplua nuj, xim yog mos thiab lwm yam zoo, tom qab tso cov txiaj ntsig pov tseg yuav tshwm sim ntau dua, nplua nuj thiab zoo nkauj. Qhov no ua rau muaj kev thov ntau dua rau kev ua cov pob zeb pom cov hniav, thiab qhov kev thov rau kev txiav ntawm marble saw hniav yog ntau dua qhov kev thov rau granite pom hniav. Tsis tuaj yeem nthuav tawm qhov tshwm sim ntawm kev sib tsoo ntug, kaum.

Marble hniav txiav piece:

Granite saw hniav hardness yog loj, nyob rau tib lub sij hawm zoo dua tu. 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 pom hniav txiav qhov tseeb tsis siab npaum li marble pom hniav.