Diamonds that contain trace amounts of boron may possess a blue tinge. While diamonds are typically excellent electrical insulators, blue diamonds can function as semiconductors. This feature, combined with their natural hardness and resilience against damage, make blue diamonds useful in various energy related applications. Blue diamonds also are valued as gems and are as useful as other diamonds in industrial functions such as diamond drill bits for mining machinery.
Built in 288 A.S., shortly after the construction of the New Berlin to Dresden Jump Gate, Bautzen Station supports the Kruger Minerals mining operations in the Dresden system. Smaller than the rival Daumann facility at Leipzig, Kruger chose to focus solely on the extraction of Diamonds from the shifting clouds and rogue asteroids that populate Dresden, particularly in the Schwefelnebel. It is from here that the famous blue diamonds, also known as "Hessian Tears" originated, mined from the lava fields of Dresden by Kruger miners. The vast majority of the diamonds mined in Dresden are used in industrial drills, as their quality is usually not good enough for the luxury goods markets.
It says they're mined on Bautzen station in Dresden. It's a little weird, i'm unsure if this is some kind of oversight or if this is simply giving Gallia more trading commodities.