FILTER FOR TANZANITE Hanneman Filter for Tanzanite
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FILTER FOR TANZANITE

Hanneman Filter for Tanzanite.

€58.00 €58.00 (tax excl.)

Using these filters is simple.  Just place the stone on the included viewing surface, illuminate it with incandescent light, and hold the filter close to the eye. 

Observe the apparent color of the stone and match that up with the identifying chart that comes with the filter.

F.T.
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