Showing posts with label condes crystals. Show all posts
Showing posts with label condes crystals. Show all posts

Thursday, April 25, 2013

Scissors, Paper, Rocks


Remember this pretty peck of pebbles from the beach?


I thought I'd put my money where my mouth is and do something with it. So I cut (scissors) some nice thick water colour paper and drew on it with charcoal.


Then I made up a purple solution of the old Condy's Crystals and dipped the paper in it. BTW, did you know Condy's Crystals were once considered de rigueur for chook farmers to flavour their chooks water and  rid them of parasites. As it is a caustic solution, they may well have been rid of their chooks' digestive tracts too.


When it oxidises, it changes from purple to brown.


Then comes the magic science part. With some plain lemon juice, bottled or fresh, the paper can instantly be bleached back to white. It can be spattered on, or brushed or dripped. The edges can be bleached back too. The random organic nature of the runs is part of the charm of anything  on watercolour paper.


Then some colour can be added back over with water colour pencils and a wet  brush. Maybe a little white pastel can highlight bits and pieces. I'm still playing with this in between classes.
The yellow rock up the top is still my favourite just like in the photo.

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