This is a 12 lb. 7 oz. dynamite cluster! It has a quartz matrix and has beautiful golden sheets of mica all over it. The golden color you see in photo 2 is a layer of iron ... makes for quite a powerful piece! The golden color of the Mica pieces does not show well in the photo. A Mica cluster added to a room promotes a positive shift in the energy flow. Mica allows you to see clearly and, at the same time, keep your heart open with acceptance.