Thogchag amulets.

Thogchag Tibetan amulet.
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The name of the Thogchag amulets litteraly mean "sky-iron" because in the far past some of the original Thogchag amulets were made of meteoritic iron.
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Nowaday the Thogchag are amulets made of metal (mostly bronze and iron),
made by some special sacred metal workers, and sometime later blessed by Lama.
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Thogchag amulets can have various shapes :

- Ritual items (Dorje, Phurba, Melong...)
- Tantric deity (Chana Dorje, Garuda, Citipati)
- Mantra plates & so on...
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Tibetan see Thogchag as powerfull protective amulets and wear them as pendants,
or sometime also add them to their Mala.