Mexican Fire Opal Dark 2-10mm Chip - 15-16 Inch Serpentine They come from far-away

They come from far-away

or black and can be distributed randomly or in bundles or star to like formations

It is named for the Amazon River in Brazil

Mica is heat-resistant and does not conduct electricity

Mexican Fire Opal Dark 2-10mm Chip - 15-16 Inch Serpentine They come from far-away[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.]