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Zircopax Plus – (ZrSi04) A zirconium silicate used in glazes to promote opacity. Also known as ULTROX 500W

Iron Oxide: Red NR4284 -99% Pure (Fe203) concentrated form of iron oxide producing browns, buff and greens.

Rutile, Ceramic – (Ti02) an impure ore containing titanium and iron producing a tan color in glazes.

The original Gerstley Borate has been discontinued. Laguna has created a Gerstley Borate Blend which is a close substitute for the original. You can also us Gillespie Borate as a...

Zinc Oxide 910 – (Zn0) In small percentages, zinc oxide acts as a flux in glaze, and it increases color response.

Titanium Dioxide – (Ti02) used in glaze to promote opacity and crystal growth.

Copper Carbonate – (CuCo3) glaze colorant can produce green in oxidation and reds in reduction kiln atmosphere.

Spodumene - (LiAlSi206) a high temperature lithium-based feldspar used in glazes and in flameware clay body formulas.

Chrome Oxide, Green – (Cr203) a glaze colorant produces greens, to browns, very refractory Toxic in raw form

Copper Oxide, Black - (Cu0) black cupric oxide stronger that copper carbonate can produce green glazes in oxidation and reds in reduction kiln atmosphere.

Bone Ash – (Ca3 (PO4)2) Source of phosphate lowers melting point in glazes contributing to translucency. Promotes intense colors in glazes.

Nickel Carbonate-Green – (Ni2C03) produces browns and greens and can alter other metallic coloring oxides in the glaze.