Shop › Salt Crystals- Cyanotype on Watercolour Paper Image 1 of 1 Salt Crystals- Cyanotype on Watercolour Paper from $18.00 Cyanotype print of salt crystals on watercolour paper.Available in the following sizes:1- 8 ½ x 12 ¼”1- 13 × 19” Size: Select Size 8 ½ x 12 ¼” 13 x 19" Quantity: Add To Cart Added! Cyanotype print of salt crystals on watercolour paper.Available in the following sizes:1- 8 ½ x 12 ¼”1- 13 × 19”