abstract:In geology, macrocrystalline rocks have crystals large enough to easily be identified by sight. Macrocrystalline or phaneritic texture is common in intrusive igneous rocks which cooled slowly enough for crystal growth.
Results: XRFcandeterminethekindsandcontentsofthemacro and the traceelements, PXRD will discriminate the falseEjiaothat containing the crystallinematerial.