黑料老司机

The alexandrite gemstone was discovered in fairly modern times. Since it was found in the early 1800s in Russia, not much lore has built up around this incredibly rare gemstone. When this gemstone was first discovered in emerald mines in the Ural Mountains, they assumed it was emerald. However, the mineralogist who found it later noticed that the gemstone changed colors depending on the type of light it was in. Due to the alexandrite stone changing colors it is often described as 鈥渆merald by day, ruby by night鈥�. Alexandrite is a rare variety of the mineral chrysoberyl that changes from