Alumina Hydrate

Manufactured by Blockson Chemical Co.

Bone Ash

Powdered Silica, established 1834

Manufactured by Howe & French, Inc.

Pumice

Manufactured by S.S. White Dental Manufacturing Co.

Aluminum Stearate

Manufactured by Hatfield's

Haematite (Pencil Haematite) Iron Oxide Red

Spanish Red Oxide

Manufactured by F. Weber & Company, Inc.

Persian Gulf Oxide

Manufactured by Reichard-Coulston Inc.

Spanish Red (Mapico Red Medium)

Manufactured by Binney & Smith Co.

Burnt Yellow Ochre

Manufactured by Fezandie & Sperrle

Burnt Sienna

Manufactured by Lefranc

Burnt Sienna (American)

Manufactured by Reichard-Coulston Inc.

Red Earth from Virginia

English Red, Venetian Red

Light Red. Calcined Yellow Ochre

Manufactured by F. Weber & Company, Inc.

Indian Red (Colcothar) (Caput Mortuum), founded 1832

Manufactured by Winsor & Newton

Morello di Sale

Pazzouli Red, Iron Oxide Red

Armenian Bole (Red Bole)

Venetian Red (artificial)

Manufactured by Wadsworth, Howland & Co.