Common colors of peacocks in embroidery?

Reddish brown flocculent precipitate --------fe(oh)3

Light green precipitate ------------fe(oh)2

Blue flocculent precipitate ----------cu(oh)2

White precipitate --------------caco3,baco3,agcl. baso4,mg(oh)2.(

Which baso4,agcl are white precipitates insoluble in

hno3,caco3

baco3 is white precipitate soluble in hno3

)

Yellowish precipitate (in aqueous solution)----s

Valent fe light green

trivalent fe yellow

trivalent fe compound precipitates are generally red

calcium barium silver ion precipitates are generally white

divalent cu light blue

f2 yellowish green

cl2 yellowish green

br brownish red

i2 purple

no2 brownish red

o3 light blue

feso4 green

Light green precipitate ------------fe(oh)2

White precipitate --------------caco3,baco3,agcl,baso4,mg(oh)2.(

where baso4)