35 Astounding And Uplifting Facts About The Universe
It's made from the same stuff that makes up sand and glass, called silicon dioxide. It's the lightest and lowest density solid on the planet. It's thermal properties are so amazing that you could make a winter jacket out of it and be sweating at the top of mount Everest.
Rock Cycle [More important than you think! When picking rocks for hardscapes you want to use Metamorphic rock in most cases, especially with water (so it doesn't leach anything into the water) but it is also important to know what type of rockscape your c