Sulfur
Image: <a href="https://en.wikipedia.org/wiki/User:Pseudopanax" class="extiw" title="wikipedia:User:Pseudopanax">Pseudopanax</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a> (Public domain)
Mineral NameSulfur
Chemical FormulaS
Mohs Hardness1.5
Crystal Systemorthorhombic
Lusterresinous
Streak Coloryellow to white
Cleavagepoor/imperfect
Fractureconchoidal
Specific Gravity2.07
Colorsyellow, orange-yellow, brownish-yellow
Transparencytransparent to translucent
Type LocalityWhite Island (Whakaari), New Zealand
Mineral GroupNative Elements
Usesindustrial (sulfuric acid production), fertilizers, pesticides, pharmaceuticals, vulcanization of rubber, collector specimens
Associated Mineralsgypsum, calcite, aragonite, pyrite, cinnabar, realgar, orpiment, volcanic gases
Raritycommon
Description
The image displays bright yellow, powdery to crystalline sulfur deposits covering the ground and stream banks in a volcanic landscape. The sulfur appears as crusts and masses, contrasting with the darker volcanic rock and stream bed.
Geological Context
Sulfur in this context forms in active volcanic and fumarolic environments, primarily through the sublimation of sulfur-rich gases (like H2S and SO2) directly from volcanic vents or by their reaction with oxygen and water vapor at the surface.
