Sulphur deposits on the earth’s surface are found as rhombic sulphur. (Text Book)

Ans. Sulphur has catenating power. It has two crystalline allotropes

a.      Monoclinic and

b.     Rhombic

1. Monoclinic sulphur is stable between 94.5⁰C and 120⁰C. This temperature is much higher than the average temperature of the earth’s surface.
2. Rhombic sulphur is stable at the temperature below 94.5⁰C. Over a period when monoclinic sulphur is cooled, it is get converted into rhombic sulphur.

Hence, sulphur deposits on the earth’s surface are found as rhombic sulphur.