Crystal gardens. What makes yellow or orange?

[Ocean Breeze]

The yr 12 Chemists are just now making their crystal gardens. Working out well, excepting a few artistic students have noted that it lacks any orange and yellow growths.
Can anyone suggest a salt that will "grow" a yellow and an orange?

We have green(nickel), red (cobalt), white, blue(copper) and brown(iron)
Thanks guys

[J]

Here is a list of salts and colours:
White - calcium chloride
White - lead (II) nitrate
Purple - manganese (II) chloride
Blue - copper (II) sulfate
Red - cobalt (II) chloride
Pink - manganese (II) chloride
Orange - iron (III) chloride
Yellow - iron (III) chloride
Green - nickel (II) nitrate

Hope this helps

Julie

[Ocean Breeze]

Thanks Julie. Brilliant. Just what I need.
RS