Butter Drop WC-163

(WC-160 - WC-167): These spectacular crystals are wonderfully three-dimensional. While some crystalline glazes seem "impossible," by using these glazes and the following firing schedule, you'll be amazed at the beautiful crystals that will appear! This firing schedule may require adjustment in different kilns and under varying conditions. Select from stock colors, or blend your own choice of stain or oxide to the base glaze, WC-160. These glazes are lead free and certified nontoxic. Excellent crystal growth results in slightly raised crystal structure-Laguna recommends a more durable choice for high abrasion areas of dinnerware sets.

Semi-opaque glaze in the Laguna Cone 5 Crystal Blossom Glaze Series.

Crystalline Glaze Firing Schedule
There is no such thing as a foolproof firing schedule for crystalline glazes, but here is a good place to start for Cone 5:

Laguna recommends testing their glazes on test tile with your clay body before use in art or production. Photographic reproductions differ from actual colors.