Rare Boulder Opal Piece from Australia - 1.7" - 23.5 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: 4.4 x 3.1 x 0.9 Centimeter diameter
Weigh: 23.5 Grams