Oriental Design Stained Glass Pattern Book Dover Craft

“The glass-maker produces his wonderful reds by mixing with the batch in the melting-pot a combination of oxide of iron, sub-oxide of copper, a little gold, and silicate of sodium, all in varying proportions.

For blues, he introduces an addition of cobalt, zaffre, and copper.

His greens are won by using various oxides of iron, peroxide of copper, and chromium oxide.

By adding oxide of manganese, oxide of uranium, and perhaps some antimony and silver, he makes the chemistry of heat give him glowing violet. And with oxide of iron, antimony, and a few other chemicals he produces the tints of orange, ranging through all the sunset hues of that gorgeous color.”