Polished Agate Geode from Clevedon

Description Polished Agate Geode from Clevedon UK This agate geode has been cut through the middle to reveal the quartz and calcite inside. It measures 5cm across and is an excellent specimen with the typical ‘pink’ colours one associates with the geodes from Clevedon. Agate geodes from Clevedon are highly sought after because they are much harder to find compared to agates from other parts of Somerset. This part of Somerset is one of the geologically diverse areas of the UK. In this area the geological history covers over 300 million years. Agates commonly occur in nodules within volcanic and metamorphic rocks. Gas bubbles trapped within the cooling rocks leave cavities which are then filled by water containing silica. As the layers of silica build up they create the typical bands of colour within.  When the silica isn’t able to completely penetrate the cavity, they result in  hollow crystal lined geodes. The principal components of the different varieties of agate are quartz and chalcedony. Different colours are due to the various oxides present, iron, chromium, and also manganese. The colourful varieties of agate frequently seen in jewellery include, Moss Agate, Blue Lace Agate and also Green Agate. Metaphysically, a stone famous for its soothing and for its calming abilities. This is a stone for eliminating negative energies and transforming negativity into positivity. Additionally it can also help to increase concentration and perception. Back To Crystals & Minerals Return to UK Minerals