Mexican Fire Opal - Mineral Standard/Staff Pick:Standard Approximate Size of 1 Piece:

Approximate Size of 1 Piece: 8cm x 1

Case Size approximately: 100mm x 80mm x 20mm

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Best bang for your buck because it is the first step into commercial grade

Mexican Fire Opal - Mineral Standard/Staff Pick:Standard Approximate Size of 1 Piece:Mined 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