Igranite lilitye elivuthayo elenzeka ngokwendalo elenziwe ngumxube weeminerali, kubandakanya iquartz, mica, kunye nefeldspar.Kudala isetyenziswa kwishishini lokuvelisa ngenxa yokuqina kwayo, ukuxhathisa ukunxiba kunye nokukrazula, kunye nokukwazi kwayo ukugcina imilo yayo kunye ...
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