Queensland Boulder Opal - Orange & Blue Ring Hook back length from top

Hook back length from top of hook - 49mm

95mm long x 4

Material: Solid Australian Recycled Sterling Silver

Flutter my Heart

5mm) Bracelet Chain

Queensland Boulder Opal - Orange & Blue Ring Hook back length from topFrom Tall Trees Studio Solid piece of orange & blue colour Queensland Boulder Opal on Ironstone. Boulder opal forms within ironstone boulders, which are concretions of iron rich sediments. The silica, a key component of opal, is released into the groundwater through the weathering of surrounding rocks, particularly sandstones and mudstones. As groundwater moves through the rock, it carries the dissolved silica. The silica rich water then seeps into