Queensland Boulder Opal - Red, Blue, Green Gold Tone Bracelet 65 parts Germanium) in my

65 parts Germanium) in my workshop at Tall Trees Studio

Sterling silver sand cast half disk slider pendant with channel set castin-place Australian sapphires

" a phenomenon caused by the diffraction of light through tiny silica spheres within the stone

Perfect for those who cherish simplicity and sophistication

4mm Round brilliant cut Peridot

Queensland Boulder Opal - Red, Blue, Green Gold Tone Bracelet 65 parts Germanium) in myFrom Tall Trees Studio Solid piece of red, blue, green and gold tones Queensland Boulder Opal on Ironstone. Boulder opal forms within ironstone boulders, the silica, a key component of opal, is released into the groundwater through the weathering of surrounding rocks, particularly sandstones and mudstones. Groundwater moves through the rock, it carries the dissolved silica and its this silica rich water then seeps into cracks and voids within the