This week’s Mineral of the Week is opal. Any opal can be added. Precious opal. Hyalite opal. Jelly opal. Opalised wood. etc 5666 Opal, Lightning Ridge, Finch Co., New South Wales Subscribe to Dad Dad Diary. D'oh! Chronicles Index... Related posts:Danger is my Business...Re-Unboxing IIMineral of the Week - DioptaseMonthly Mineral Chronicles Volume 3 Issue 9...No Label! Found it!