All natural rhodochrosite tumble polished from Argentina with size range from approximately 1/4 to 3/4 long by 1/8 to 1/2 deep and wide and each winner will receive 1 ounce,,,28.5 grams,,scooped from the rhodocrosite as pictured,, pictures taken dry with and without flash,, with lots containing approximately 20 to 30 pieces.Much of this material has banding and translucent areas as well as some matrix rock.