 Limestones are also found at Lune River, Precipitous Bluff and produced in deeper water at Surprise Bay on the south Coast.The Mathinna Group continued in the Silurian period with Bellingham Formation and Sidling Sandstone.In western Tasmania, after the Gordon Group came the Eldon Group consisting of Crotty Quartzite, Amber Slate, Keel Quartzite, Austral Creek Siltstone, Florence Quartzite and Bell Shale.