Fossil Worm CastThese unusual opal fossils from Lighting Ridge in NSW Australia are believed to be the excavation holes of ancient worms or shrimps. Some of these pieces show colour others are potch. Mined by Chris Chancerel at the Grawin in Lighting Ridge in the late 1980s. These cast are Cretaceous 100 million years old. Largest 19mm x 15mm x 7mm

The clasp is a small brass antique drilbu bell

Both sides are covered in crystals

set in solid Sterling Silver

adjustable fit

It is an old specimen with a massive amount of Stitchtite in it

5 x 7 cm (outside) 5

Ex Adam Wright Collection

Available in Three different Sizes

They’re on a fixed chain that is adjustable to 3 different lengths

This would be a very nice piece of Jurassic fossil fern for jewellery making

weighs 67 grams

Found at Lune River in Southern Tasmania