Plain sticky notes
It is the biggest amethyst geode in the world!
It's over 3 metres tall. It is 2 1/2 tonnes heavy. That means it's as heavy as all of the grade 2s at Laburnum put together.
A geode is a hollow rock with crystals in it. When a volcano errupts there can be holes in the cooling rocks then minerals seep into the holes and become crystals and the rock becomes a geode.
It was found in Uruguay but it now is in Queensland, Australia.
Rich sticky notes
Geode cracking
Photos
Empress of Uruguay
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