Example of cupric sulfate zinc patina matte and gloss. Master and Margarita.

Master and Margarita by Brodie Parent before and after patina.
This is a one sided mold made of a clay positive cast in zinc. The casting was wire brushed quickly and unevenly to give the rustic look before applying the patina. No polishing or brushing was done after

Compare the matte appearance of the above to the much more polished color in the piece below. The only real difference is a light wire brushing after the patina has been applied and a coat of clear coat.

Cupric sulfate

Here is what the zinc looks like raw.