mineral
Sulfur
Sulfur (S)
AI-generated identification · may be incorrectHardness of 1.5 to 2.5 on the Mohs scale, bright yellow color, resinous to greasy luster, orthorhombic crystal system, and poor cleavage with a specific gravity of 2.07.
Identified More mineral →
Explore Sulfur in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 1.5 to 2.5 on the Mohs scale, bright yellow color, resinous to greasy luster, orthorhombic crystal system, and poor cleavage with a specific gravity of 2.07.
Formation & geological history
Forms primarily around volcanic fumaroles, hot springs, and through the action of sulfur-reducing bacteria in sedimentary evaporite deposits.
Uses & applications
Used extensively in industrial manufacturing for producing sulfuric acid, vulcanizing rubber, making fertilizers, and creating matches or gunpowder.
Geological facts
Native sulfur is known for its distinctive pungent odor when burned and has been mined since ancient times for medicinal and ritual purposes.
Field identification & locations
Easily identified in the field by its vibrant yellow color, low hardness, and characteristic smell upon friction or heating; commonly found in volcanic regions worldwide.
