Agates are natural,all of them have been artificially color enhanced Irregular,free form,polished,great for pendant,wire wrapping,jewelry making,craft projects,art design,agate knobs and whatever your imagination inspires! Best for jewelry maker,DIY crafts,agate slice collector,art designer and more Perfect for home office decoration,artworks,paperweight,gifts for housewarming,birthday,etc Can give your designs a professional for touch