Heather cyanotype - silver plated pendant and necklaceHeather is a silver and resin necklace that contains a cyanotype of a heather stem. Cyanotypes are made by creating a photosensitive fluid from two chemicals. This can then be brushed onto a surface and can be used to make photographs. These particular chemical react to the uv in sunlight. Botanical items can be place on the surface and the u protected part of the photo reacts but those parts in shadow won't. The final stage is a rinse under a tap to