Naturally colored Amazonite in all its subtle colors. I put handmade Lampwork beads with it to make a really pretty rosary. The wire is Argentium sterling which means it can be washed with just soap and water to keep it shining. The Crucifix and Center have a light coating on them to keep them from tarnishing. Of course the best way to keep rosaries shining is through prayer. 6mm beads.