Burnt Siena was one of my [Mark] favorite Crayola colors. I don't think I knew that it somehow represented the color of a place. I also liked the sound of the name of the color. So, while in Siena, I took a number of photos of colors trying to remember which was that of the Crayola.
It must have been wishful thinking.
Gdansk is known for its amber. We learned a little bit about it while we were there. For one thing, I had never known that Bernstein and Bursztyn were variant names. I'm sure there must be other spellings. And, that Jubiler (...we know a Jubilirer family at Adat Shalom) means Jeweler. I was struck by how prevalent the color was in the area: the man staining his building was dressed in the same colors (he was tickled "amber" that I wanted to take his picture). But, what is the connection of Jews and "the Jewish God" to Gdansk and amber? The illustration is from a book called Das Grosse Bernsteinbuch, by Elzbieta Mierzwinska (with photos by Marek Zak). I couldn't find more publication information.
The colors range from soft opaque yellow to clear green and a wide spread in between and beyond. The actual color depends on the "age" of the stone.