the.com/tigereye
a stone that fakes shimmering motion by trapping light in fibers that no longer exist
how it formsasbestos fibers dissolve, quartz fills the ghost lines
chatoyancythe glowing band is light bouncing off parallel fibers
roman armorsoldiers wore it as protection in battle
hawk eyeits bluish cousin forms from the same trick
acid bathvinegar can damage its silky surface