Mexican BiColor Fire Opal plain nuggets 18 inch 44 beads 6x5x3-16x11x8mm

Bi-Color Mexican Fire Opal plain nuggets show a waxy luster, have excellent polish, show an asymmetrical nugget shape, appear semi-translucent , appear as a two tone dark black hue to a greenish yellow hue, exhibit some natural opal crazing, and these Common Opal show no play of color in these stunningly beautiful BiColor Opals mined in Mexico.