to make a 10 block tall spiral you will need: 1 bucket of lava, 1 bucket of water, and 150 glass blocks.
start off by making a 4 by 4 glass square on the ground, with no corners, and place a single block in the centre.
Then place 2 glass block opposite each other inside the square.
I will represent the water and lava glass blocks with blue and red respectively like so.
You will then want to add another layer, but with the red and blue blocks (representing glass) moved around one block.
It should look like this. remember, the red and blue should be glass blocks, they are coloured here to show you where they are.
Rinse and repeat until you have something that looks like this.
Remember the red and blue should be glass, not wool.
then at the top, empty your lava and water buckets and it will look like this.
And there you have it, a simple 3 by 3 spiral. Thanks for using Cool things in minecraft!
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