Obsidians spiritual meaning is, truth-enhancing. A strongly protective stone, it forms a shield against negativity. It blocks psychic attack and absorbs negative energies from the environment. This stone draws out mental stress and tension. Streaks may appear and are called "the eye of the rock".
As for Synthetic opal ,which is what is on this obsidian turtle, does not specifically have any healing properties but is made with real opal.
Blue Obsidian Turtle
It is hand crafted. Great decoration. Obsidian is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminum, sodium, and potassium.
Synthetic opal is denser and contains less water, so it does not crack like a natural stone. It has the same chemical and physical properties as natural, mined opal.