The stones are known for having a bright “electric” color saturation in mint-green or pale-blue hues. The darker-colored Paraiba tourmalines are the most in demand and the most expensive. The gem is ...
The Tibetan sky burials are one of the most famous and unique forms of funeral rituals from around the world. They are a symbol of detachment from the physical body, be it in life or at the gates ...
Among the countless gems found in nature, a select few stand out not only for their beauty but also for their astronomical value. Here’s a look at some of the most expensive gemstones in the world.
Uniaxial materials possess one unique optic axis (the c-axis) along which the orientation of lattice ... Pleochroism in Tourmaline. Tourmaline is one of the most strongly pleochroic gems. Indeed, its ...