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Showing posts from 2020

Virtual Kingdom A&S 2020: Chalcedony/Striking Glass

After my last project which was focused on just successfully making a glass, I began trying to refine my batch composition to eliminate lead so I would be comfortable using it in projects that do not stay with me. Shortly after accomplishing this, I got distracted by the range of effects that can be produced by including silver in glass. One effect I focused on is called striking, which is where the glass shifts through a rainbow of colors when reheated. I approached this under the impression that striking glass was a more recent creation, but in the middle of the project, I came across extant pieces with similar coloration that were referred to as chalcedony glass. I eventually found a recipe dated to 1443 for this glass, and it did include striking as the last step of the process. This recipe, however, called for mercury and lead in its components. I had just managed to get lead out of my batch, and I was definitely not going to introduce mercury, so this project focused more on comp

Queen's Prize 2020: Glassmaking, From Beach to Bead

For my entry into Calontir's 2020 Queen's Prize competition, I tried making my own glass. This entry won the Judge's Choice vote. When I use glass in a jewelry or lampworking project, it comes in the form of preground enamel or glass rods. I tried taking a step further down the supply chain and making my own based on Theophilus' instructions, although I wound up modifying that glass so it could melt in my kiln and branching out to try other period compositions with modern materials. Instead of trying to convert my documentation into a blog entry this time, I'm just going to directly embed the documentation I submitted with the entry, slightly edited to include reference photos that would have been part of my display.