Sienna Transparent 001119

Contains

Selenium, Sulfur

May React With

Copper, Lead, Silver

Cold Characteristics

Consistent color.

Working Notes

With excessive heatwork, can opalize to a dark green/brown. May opalize in kilncasting, when exposed to excessive heatwork, or in other instances in which processes exceed the parameters of the test for compatibility.

Striker

Contains

Copper, Selenium, Sulfur

May React With

Lead, Selenium, Silver, Sulfur

Cold Characteristics

Very dark brown.

Working Notes

Torch: Color develops in the flame. Keep this style transparent by using it in small amounts with minimal heatwork.

Kiln: Working properties and kilnformed characteristics are consistent with sheet glass.

Other

The brown color of this style results from reactions between several of the elements that are listed as reactive with one another elsewhere on this chart. As such, it may react with many of the other glasses that contain these elements. However it is likely that the reaction will be subtle or unnoticeable due to similarities in the color of the reaction and the color of the glass. We advise labeling all striking glasses.