The project aims to study the effect of ions into the glass transition of value. High refractive index By the glass in the formula (64.99-x) SiO2: 10CaO: 25Na2O: 0.01CoO: xA percent by mole A is the Transition elements include CuO, Fe2O3, Cr2O3, NiO, and where x is the amount of MnO2. concentration of transition elements. The results showed that the density of the glass is between 2.5312 -2.6130 grams per cubic centimeter. Refractive index of glass is in the range from 1.4983 to 1.5366 and the absorbance values vary according to the type of transition elements Sun added to the glass. The color of the glass will increase the concentration of the element in San Francisco materials. This is consistent with the values read from the measurements in the CIE L * a * b * and found no clear relationship between the hardness of the glass on the concentration of copper oxide.