The color of obsidian is typically colorless, orange, brown, white, gray, and black. Less often red, yellow, green, and blue.
The mohs hardness of obsidian is 5.0 - 5.5.
The mohs hardness scale from 1 (the lowest hardness) to 10 (the highest hardness).
Obsidian associates with aries, scorpio, sagittarius, and capricorn.
Obsidian can work with root chakra.
IBS (irritable bowel syndrome)
Intestinal disorders (Including indigestion, irritable bowel syndrome and cancer.)
Lack of grounding
Lack of masculinity
Connection to ancestors
Higher-self and inner-self