Mexican Fire Opal Dark 2-10mm Chip - 15-16 Inch Love inclusions of Goethite or Hematite

inclusions of Goethite or Hematite refract the light between the layers of the crystal

and was first discovered in 1854 in Norway

as well as brown to reddish brown or red in color

the other being Diamond

laced with bands or swirls of brighter blue

Mexican Fire Opal Dark 2-10mm Chip - 15-16 Inch Love inclusions of Goethite or Hematite[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.]