Mexican Fire Opal Dark 2-10mm Chip - 15-16 Inch Love Iolite most commonly occurs in

Iolite most commonly occurs in shades of blue-gray

the other being Diamond

the resulting rock is dark gray to deep black in color and riddled with pits and holes where air was trapped in the stone

Beads Per Strand: 40

laced with bands or swirls of brighter blue

Mexican Fire Opal Dark 2-10mm Chip - 15-16 Inch Love Iolite most commonly occurs in[Use Fire Opal description? This Fire Opal contains both Opal and the rhyolitic host material in which it is formed, which provides sufficient hardness for the stone to be cut. The name Fire Opal is derived from the translucent fiery oranges and reds for which the Opal is known, though it also can occur in dark brown and golden colors. Some specimens of Fire Opal produce iridescent flashes and are referred to as Precious Fire Opal or Firmament Stone.]