Crystal vs. Rock
Crystal
Translucent, Fiery
Shining, Glowing, Flashing
Diamond, Sapphire, Slate, Pumice
Weathering, Cracking, Enduring
Unbreakable, Timeless
Rock
* * * * * * * *
Water vs. Rock
Water
Quicksilver, Fluid
Shimmering, Flowing, Trickling
Ocean, Mist, Limestone, Obsidian
Unchanging, Abrading, Eroding
Constant, Immutable
Rock