Blue Velvet

Deep navy blue with subtle sparkle; work in an oxidizing flame to minimize reduction effects from heavy cobalt content. Chrome produces the sparkle — use with caution.

Outcomes

• Deep navy blue with subtle chrome sparkle flame: OxidizingBlueIndigo
  Use an oxidizing flame to counteract reduction tendencies from the heavy cobalt content. Chrome is the source of sparkle; handle with appropriate caution.
• Reduced navy blue, sparkle diminished or altered by reduction atmosphere flame: ReducingBlueIndigo
  Heavy cobalt content makes the glass prone to reduction effects; a reducing flame can dull or alter the sparkle and shift the color.

Working notes