The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s5.2

c4.s5.2

Four varieties of sulphur are mentioned by Sanskrit writers, namely, red, yellow, white and black. Of these the red and black are not now available. The yellow variety or vitreous sulphur is called *ámlá-sár*, because its semi-transparent crystals resemble the translucent ripe fruits of the *ámalaki* (*Phyllanthus emblica*). It is preferred for internal use in combination with mercury. The white variety or ordinary roll sulphur is inferior to the yellow, and used for external application in skin diseases.