Hi Everyone in labbie land!
I have a teacher who would like to make geodes, may use eggs however she is keen to have a sort of homemade sandstone geode that we can fill with alum, she is hoping there will be a little leaching to show stalactite formation.
I have tried making plaster of paris geode with sand mixed in but its pretty impermeable. Just tried a flour and sand mix that isn't holding its shape very well.
Any of you legends ever done anything like this?
geodes
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Krysia Lee
- Posts: 228
- Joined: 27 Oct 2009, 10:40
- Job Title: Labbie
- School: Brigidine College
- Suburb: St Ives
- State/Location: NSW
