Weight 1800gms Size: length 13cm, Height 14cm, Width 9cm Source: Minas Gerais, Brazil. A beautiful large Brazilian Quartz Cluster with Rainbows reflected from within the crystals. These crystals are especially good as meditation crystals for working deep within the subconscious. They work particularly well to lighten the mood for people experiencing sadness, grief or depression. Large Quartz Rainbow crystals are excellent at drawing negativity from a room or a situation.