Purple Fluorite: A Little Known Artists' Pigment and its Use in Late Gothic and Early Renaissance Painting in Northern Europe

@article{Richter2001PurpleFA,
  title={Purple Fluorite: A Little Known Artists' Pigment and its Use in Late Gothic and Early Renaissance Painting in Northern Europe},
  author={Mark Richter and Oliver Hahn and Robert Fuchs},
  journal={Studies in Conservation},
  year={2001},
  volume={46},
  pages={1 - 13}
}
Abstract A purple calcium fluoride, CaF2 (fluorite), a natural inorganic pigment, has been identified on a small number of painted artworks from c. 1450 to 1520. It was used on panel paintings, polychrome wooden sculptures, wall paintings and architectural polychromy from Southern Germany, Tyrol (Austria), Switzerland, Silesia (Poland) and Hungary. Fluorite was identified as an artists' pigment in 1968, but this case was first published in 1986. An intensely blackish-purple type of fluorite… 
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