Labyrinth is a shadowy blue-black sparkle color composed of a base layer of light Bonanaza beneath a coating of rich cobalt blue. Labyrinth is easily worked in most flames without issue but a neutral to oxidizing flame is recommended along with thoroughly preheating in the kiln before use. This color is non-striking and can appear as a transparent olive sparkle to a near black sparkle depending on how thinly it's blown. The cobalt outer layer has a slight UV reaction under LED UV lighting.
The inner layer of Labyrinth is a non-chromium sparkle color meaning that it is generally not susceptible to "checking" issues commonly associated with chromium aventurines. High kiln temps (like striking cycles) and repeated kiln cycles have not shown to cause any checking or incompatibility when encased throughout our testing of Labyrinth. Although we have tested and found that it is very unlikely to encounter checking problems when encased we cannot account for every scenario and recommend individual testing of this color if attempting a highly complex or stressful piece.
(Note - all of our rod and tubes are hand pulled so please expect some slight variances in diameter between each individual piece. For more on our quality control and grading please see our "Quality Control" page. Although we cannot guarantee a particular size we encourage you to include your preferred diameter when placing tubing orders.)