the.com/galena
the metallic stone that radioed in WWI and poisoned Rome's plumbing for centuries
crystal radioGalena crystals detected early radio signals as cat's-whisker receivers
lead sourcePrimary ore of lead since ancient times
perfect cubesCleaves into near-perfect right-angle cubes naturally
egyptian eyelinerGround galena became kohl, the original eyeshadow
silver bonusOften contains enough silver to mine profitably