the.com/epidote
the green mineral that geologists use to read the temperature of buried ancient stone.
name originGreek for added, after its uneven crystal faces
pistachio lookits yellow-green earns the nickname pistachio stone
rock thermometerits presence reveals specific metamorphic temperatures and pressures
unakite cousinforms the popular pink-and-green stone unakite
color shiftsome crystals flip color depending on viewing angle