What color is Copper Oxide?

1. Copper oxide is an inorganic compound.
2. There are two oxides of Copper.
3. One is Copper oxide or Copper (I) oxide or Cuprous oxide.
4. Copper (I) oxide is the principal oxides of Copper, whose chemical formula is ${\mathrm{Cu}}_{2}O$.
5. Copper (I) oxide is generally found as red in color.
6. Other is Copper (II) oxide with a formula $\mathbf{CuO}$. It appears in black solid form.