Emerald has high energy and calms the mind and removes negative energies. Garnet (demantoid) is found in red, orange, brown, and green colors. Among these, the most valuable type of garnets is green. Bright green garnets are more valuable, but lighter colors are often more popular. 

The original locality for lapis lazuli is the Sar-e-Sang deposit in Afghanistan's remote Badakhshan district. In the Achaemenid period, azure was called "Kabutkeh". In the Sassanid period, azure was consumed a lot. The roof of Ctesiphon, as well as various sculptures, is made of azure; it is possible that they used azurite instead of azure in making these works. 

Emerald means green and its name is derived from the Greek word "Smaragdos" which some say is derived from Persian. In the past, all green crystals were called emeralds. The first reference to it in Western literature is from Aristotle. 

In 2010, US Pentagon officials, along with US geologists, uncovered approximately $ 1 trillion in untapped mineral reserves in Afghanistan. A Pentagon note says Afghanistan could become Saudi Arabia's lithium. Some believe that intact minerals are worth up to $ 3 trillion.