The first thing to mention here is that it is not an Opal at all! The name was given to it because of the opalite sheen it sometimes carries. Dendritic Opal is actually an agate/chalcedony.
Merlinite helps with maintaining emotional detachment. It brings fullness and abundance to all areas of life. It is said that it creates a peaceful environment and encourages appreciation of each moment.
Merlinite is said to be the stone of alchemists, Shamans, Wizards and magicians. It supports and strengthens all forms of ritual. It is said to provide connections to infinite knowledge and ancient wisdom. Merlinite can be used to assist in accessing past or future lives and help give clarity for remote viewing, it also can help one see difficulties as a challenge.