
mineral
Sulfur
Sulfur (S)
AI-generated identification · may be incorrectMohs hardness of 1.5 to 2.5, bright yellow to greenish-yellow color, resinous to greasy luster, and poor cleavage.
Identified More mineral →
Explore Sulfur in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Mohs hardness of 1.5 to 2.5, bright yellow to greenish-yellow color, resinous to greasy luster, and poor cleavage.
Formation & geological history
Forms in volcanic regions, hot springs, and sedimentary evaporite deposits through sulfurous gas precipitation.
Uses & applications
Used widely in industrial manufacturing of sulfuric acid, fertilizer production, and chemical processing.
Geological facts
Known since ancient times, sulfur is often called brimstone and burns with a characteristic blue flame.
Field identification & locations
Easily identified by its vibrant yellow color, low density, and distinct odor when heated. Found globally near volcanic vents.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Limonite
FeO(OH)•nH2O
mineral
Limonite
FeO(OH)•nH2O
mineral
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Limonite
FeO(OH)•nH2O
mineral
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous