Origin: Coober Pedy opal fields SA.
Size: 260 x 140 x 70 mm
Weight: 1979 gm.
Comments: A superb specimen of white opal in a seam,I obtained it from a miner who was little down on his luck. I liked this piece as soon as I saw it. He was very happy when I left him, for he unloaded some other really good pieces onto me which also left me in a magnanimous mood.This specimen is particularly instructive in how the opal is attached to its matrix . It is a wonderful specimen to use for a lecture or display .