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Oxides of Metal- added to basic flux to make various colored enamels
-transparent cobalt blue- from black oxide of cobalt and powdered flint glass
other blues obtained by using smaller proportions of oxide of cobalt
turquoise and greens from oxide of copper
- reds- from gold oxide
- soft grays- platinum
-yellows- uranium and antimony
- purples-maganese [[manganese]]
-white- oxides of tin
- rich black- iridium
- in opalescent colors, more oxide of tin added to increase opacity


60 or 80 mesh(like table sugar or salt
200 mesh(like flour