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 How to test the crosstalk of 3D television. |
 How to look at the collection of anaglyphs to get a good vision of relief. |
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 Crystallization of bismuth.
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 Small geode of chalcedony. |
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 Artificial crystals of potassium ferricyanide. The color of the anaglyph has been changed for a better reproduction of relief. |
 Amethyst geode |
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 Ammonium phosphate. Synthetic crystals. |
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