Aquarium Rock Aventurine Bits & Pieces Aquarium Safe, Natural Stone Iwagumi Aquascape, Cichlid Aquarium, Terrarium New/Unused; Green Aventurine -- Natural Stone! No Plastic! No Resin! Each Order Contains SMALL Bits & Pieces you can stack and design any way you like! Total Weight Approximately 3 Pounds of Rock in each box. Actual sizes, color and shape of stones will vary because this is 100% Natural. These are small loose pieces of Rock, approximately 1.5" to 4" in length. No Silicone or Bonding agents included. A few examples are displayed- see pictures-- but the Aquascape is ultimately yours to Design and Create