Harness the cosmic energy of the 12/12 portal with crystals like amethyst for intuition, clear quartz for healing, selenite for clarity, rose quartz for love, and black tourmaline for protection.

If you've ever been puzzled by the crunchy quality of a piece of pecorino, that might be because certain hard cheeses are mottled with a series of curious crystals that contribute to their unique ...

Oscillators may use crystals as precise tuned circuits. If you have a vector network analyzer (VNA) — or even some basic test equipment — you can use it to learn the parameters of a crystal.