Copper Carbonate Chemicals USG Hydro-Stone® Gypsum Cement is

USG Hydro-Stone® Gypsum Cement is used in the fabrication of high-quality art novelty and statuary castings

An iron and manganese bearing clay used in underglazes

Chemical Formula: CuCO3

That makes it useful for developing chrome-tin pinks and maroons

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Copper Carbonate Chemicals USG Hydro-Stone® Gypsum Cement isCopper carbonate is a green powder that is used primarily as a glaze or slip colorant. Depending on firing conditions and glaze formulation it has the potential to produce shades of green, turquoise or reds (reds usually occur in reduction firings). Chemical Formula: CuCO3 Synonyms: Cupric Carbonate Safety Data Sheet: SDS