Glossary

A black pigment made by charring of animal bones; sometimes used in paints, although carbon black generally is preferred for […]

A glue made from the bones, hide, horns, and connective tissues of animals; when used hot, it develops strong bonds;

Descriptive of a material (such as wood) that does not have the same physical properties in all directions.

On drawings, abbr. for anneal

Glass created by a process that moves it, in a molten form, along a long oven where it is heated

A natural mineral calcium sulfate, used in the manufacture of portland cement to control its set.

Gypsum from which all the water of crystallization has been removed.

Plaster which has a greater percentage of the water of crystallization removed than normal gypsum plasters; used as a finish