Spiderweb Obsidian Tumblestone  Obsidian is a glassy, silica-rich volcanic rock with a hardness of 5-5.5.  This very unusual variety of Obsidian is black/grey with unusual markings that resemble a spiderweb. This lovely example measures approx. 3.1 cms x 2.8 cms x 2.2 cms. Obsidian is said to have an affinity for the world of souls and can assist in the communication with spirits. It is said to be a very powerful stone for eliminating negative energies. Check out my other items! Be sure to add me to your favourites list!

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