A search at a registered private mine resulted in the discovery of a rare amethyst crystal. This video walks through the excavation process, crystal characteristics, and the geological value of the ...

In this work, a system architecture is presented for a voltage-controlled crystal oscillator (VCXO) with integrated Pierce structure and varactors in a deep submicron CMOS process. To meet low crystal ...

Continuously tunable coherent terahertz-wave generation from 0.1 to 2.7 THz can be achieved in isotropic semiconductor nonlinear crystals by difference frequency mixing. We experimentally demonstrated ...

On June 25, 2025, the Crystal Horoscope brings to light the connection between the ancient energies of gemstones and the unique vibration of each sign.