An assortment of Teal, Yellow, Purple, and black Millefiori.The glass pieces are generally made using some glass blowing techniques where molten glass is pulled into long thick strings and nipped into manageable pieces. The thicker the piece, the more the Millefiori will spread out during fusing. Try to use pieces that are the same height and diameter when creating an elaborate glass pattern. Slumpy's Millefiori French Quarter Assortment available in 2 ounce jars 96 COE Compatible. Millefiori is measured in ounces rather than pieces - like gold. Yes, Millefiori is like gold. But this begs the question, how many pieces of Millefiori are in one 2 oz jar? So, we counted and did some math, and on average there will be 100-200 pieces of Millefiori in each 2 oz jar. Keep in mind that this is just an average; some may have more pieces than others but everyone will get 2 oz. The number of pieces will vary because the size and weight of each piece varies.