Energy Necklace

Energy Necklace
What is the meaning of this Hindu or Buddist charm.....?

I recently bought a necklace charm, and the man told me about it, and he said it is a Hindu "battle axe" and it represents the balance of good and bad energy. I forgot the name for it and need help pointing me in the right direction for more explanation. Please help.
It is an axe with ...I think it is called a Dorje on 2 ends....

Probably the "Farsha." Sound right? It's the weapon of Parshuram.

http://www.info4india.com/indian-festivals/images/parshuram.jpg

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