Rare Boulder Opal Piece from Australia - 1.6" - 16.1 Grams

This is a fantastic and extremely rare Boulder Opal piece from Australia with several Opal veins showing out of the matrix boulder. Very unusual and cool collectors item.
Location: Australia
Size: 4.1 x 2.4 x 0.8 Centimeter diameter
Weigh: 16.1 Grams