The bluestone oval keyring is crafted in the spotted dolerite that makes up stonehenge39s smaller stones our bluestone keyring will make a great gift or souvenir embracing the magic of the famous rocks at stonehengebluestone is the collective name given to the smaller stones at stonehenge these stones were possibly the first to arrive at stonehenge the origin of these has been matched precisely to those found in the preseli hills in pembrokeshire west waleskey featuresauthentic bluestone