Mysterious Heliodor

Beryl is a beryllium and aluminum silicate mineral. Its color can be very diverse, and depending on the…

Tourmaline

The mineral got its name from the Sinhalese “turamali” — multi-colored, mixed. Tourmaline is the only stone known…

Magic of Rhinestone

Rock crystal is a type of quartz that is the most abundant trace element on Earth. Theophrastus took…