In science, we learned how geologists (scientists who study earth materials) wash rocks to see what happens to their properties.
The basalt rock made the water bubble.
The tuff rock got a lot more yellowish, but nothing happened to the water.
The scoria just got more dark. Nothing happened to the water.
If you are wondering what basalt is, here is a description and a sample.
This is tuff.
And this is basalt
Here is a sample of an entry in our science journals.
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