Please Note It: Due to these black obsidian stones are rough and raw,which means the stones may be coated with a thin layer of dust.All of the pictures are taken with the stones being soaked in water in order to show the true color and clarity of the material.To achieve the shine ...Please Note It: Due to these black obsidian stones are rough and raw,which means the stones may be coated with a thin layer of dust.All of the pictures are taken with the stones being soaked in water in order to show the true color and clarity of the material.To achieve the shine and clarity,you may have to rinse off,polish,tumble or cab the stones as you receive them Material: Made of high quality natural black obsidian stone,uniquely and irregular shaped Size: Irregular shapes from 1.18"-2.2"/ 3cm-5.5cm,full 2 pounds weight Multipurpose: These black obsidian stones are ideal for jewelry making,tumbling,cabochons,wire wrapping,specimens collection,home or garden decoration,gifts and so on Feature: These black obsidian stones are wonderful for meditation,chakra work and reiki healing,which will increase ones spiritual and psychic development,aiding in the ability to meditate 11