Mexican Fire Opal - Mineral Grade:A+ Grade making it both geologically rare

making it both geologically rare and visually unforgettable

W1-8000 grit

making it easier to see color and detail

To make your own polishing paste

Mexican Fire Opal - Mineral Grade:A+ Grade making it both geologically rareMined from: Mexico Description: Opal is mineraloid made up of tiny spheres of silica (silicon dioxide), which are held together in a jelly like matrix. Fire opal is a variety of opal known for its bright, fiery colors ranging from yellow to orange to red. The color of fire opal is caused by trace impurities of iron oxides, which can produce a range of colors from yellow and orange to red. Most often, fire opal does not exhibit the rainbow play of