Publications by authors named "Kokkie Schnetz"
Article Synopsis
- Ultramarine blue, a coveted artist's pigment, comes from lapis lazuli and is often treated in various ways, but its identification in paintings is not well understood.
- Researchers used X-ray spectroscopy to analyze how heating lapis lazuli before extracting lazurite affects the sulfur compounds in the pigment.
- The study found that heat treatment increases specific sulfur signals correlated with a stronger blue color in lazurite, helping to identify historical paint samples created from these treated materials.
