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Onyx is a glassy green rock that takes a polish and has white streaks within it
Green onyx may be natural.
it is a ring made of onyx fake stone
Certainly a Gemini can wear onyx stone. There is no mystical magic that prevents it.
True Onyx is black.
The black onyx is a pure black stone. Once cleaned up and everything, it is a smooth black stone. If it is true onyx, you should see your reflection of yourself in the stone, when you look at it. The black onyx makes a great stone for men's rings.
Onyx is the Mystical birthstone for the month of December
Onyx's streak is white.
A green onyx (if you are talking about pokemon) is a shiny and rare pokemon. tough I have never seen one
Certainly a Scorpio can wear onyx stone. There is no mystical magic that prevents it.
Yes. There are onyx chess sets and chess pieces at Khan Imports, and you can find them here: http://www.khanimports.com/genonchesset.html http://www.khanimports.com/chesspieces.html