I think the beauty of crystals in magic is wonderful. They have the ability to be fit right in to just about any spell you want to amplify and direct energy depending on the stones. The first and most versatile being clear quartz.
But then the beauty of crystals and stones themselves outside of magical property that earth has givted us. Each with dazzling colors, patterns, textures, shapes. Right down to the way earth gives them to us. By lava or in the oceans sedimentary rock. Salt deposits in caves, veins of bright colors along rock walls. Crystals spiking around from clusters.
Ive loved and collected randomly 'cool' rocks since i could toddle. And still having that collection and being able to use what i already had without thinking to myself 'wow.what a pretty collection of something useless' to 'wow thank the gods i kept this, i can use this in something!' Is great.
Basically, I freakin love crystals.
Id go on about how much I love them for days if you let me.