(OTA 100
) Coober Pedy Rough Small Opal pieces and Chips, Some with Colour. Pot Luck!
1 Troy Ounce (155.50 carats)
Longest Length 19.70mm. Shortest Length 2.50mm.
Widest Width 8.85
mm. Narrowest 1.50mm.
Thicke
st 4.45mm. Thinnest 1.00mm.