Green Apatite 4mm Round Faceted - 15-16 Inch Dark It is a particularly unusual

It is a particularly unusual gem because it exhibits a special optical property known as "tenebrescence

which in many species is highly iridescent

and translucent black (Apache Tears)

Agua Nueva Agate is sourced from the Agua Nueva Ranch near Chihuahua City

but the difference in the pattern really stands out and shows it's individual beauty

Green Apatite 4mm Round Faceted - 15-16 Inch Dark It is a particularly unusualGreen Apatite is a transparent to translucent stone that may be green, yellow to green or sea to green in color. Apatite has been labeled the deceitful stone due to its close resemblance to other much more valuable gems. In rare and highly sought after specimens, Apatite can exhibit chatoyancy an uncommon optical phenomenon in some stones that resembles the light reflection of a cats eye.