Ihave recently taken up carpet and tacking in several rooms of my house and some of the tacking was nailed with thick nails which left some small to larger holes in the terrazzo floor. The largest are the size of a nickle and a quarter inch at the most deep. Also have on very thin crack about 5 feet long. The terrazzo is white with light grey, brick red and black chips. How can I repair this myself? Any help would be greatly appreciated!