Obsidian var. Rainbow

Metaphysical Properties- Shows the presence of light within darkness. Purpose is to show mankind and womankind that within darkness of despair and depression, there is a light of hope and healing. Within the darkness every color of the rainbow is vibrating with a purpose.  More likely to be love:-) The black color may be a veil or an illusion; we must go to a deeper level to discover the light. Obsidian reflects our true-selves.....the good AND the bad.  Helps us to understand the dark side of ourselves so we can walk into the light. A circle of color in rainbow obsidian /compared to rings:

The circle of color seems to be more of a focusing point; where the rings are secondary but still in unison.  Cannot have a ring without a circle of color and vice a versa. Maybe the circle of color is the heart chakra and the rings relate to the other chakras. 
OR- 
The circle of color is the physical body while the rings represent the etheric, emotional, mental, astral, celestial and ketheric bodies. Each ring maybe a past life.  You can use Obsidian to tap into these lives to see where one went wrong and correct the behavior.

A mirror which reflects our weaknesses, allowing us to become aware of our dark side. Obsidian is associated with negativity because of this.  People are fearful of their dark side so they avoid Obsidian. Being Obsidian is natural glass, it seems it would allow one clarity into their lives. It is from a volcanic flow, so therefore Obsidian could help us to flow with life.

 

Numerology- Rainbow Obsidian vibrates to the number 2 which is about harmony and gentleness, a willingness to cooperate and to be thoughtful of each other.  Togetherness…

 

Gemological Properties- Obsidian is a natural glass and can have no crystal structure in the general sense of the term, and can thus have no cleavage.  The hardness is a five on Moh's scale.  The luster is vitreous; the refractive index lies between the limits of 1.48 and 1.51, but is usually near 1.49.  The specific gravity is between 2.33 and 2.42.  Obsidian is wide spread throughout the world at those places where volcanic activity occurs or has occurred in the past.