Dendritic Opal/ Merlinite -Palm Stone/ Gallet-

This mineral is white Opal with Dendrites. A dendritic stone has clear inclusions of Manganese Oxide that has crystallized in a multi-branching tree-like pattern. Dendrites can be found on other Opals and Chalcedony's. The White Opal can go from shapes of white, yellow and gray. Dendritic White opal has also been called 'Merlinite'. Not to be confused with 'Mystic Merlinate'. 

Approximate measurements.
5.3cm x 4cm x 1.5cm. 44grams.