This is one of my best opalised shell fossil I have ever had in my collection. I have sourced it from Australia Lighting Ridge,it's the area being famously producing the best opals around the world. It has a wide dark opal poch with a stunning opal bar above it with a play of green and blue colours. It's in natural condition as the miners have found it. I have taken the pictures in wet condition under sunlight to show you it's unique beauty.