SULFUR

El Desierto mine, San Pablo de Napa, Daniel Campos Province, Potosí, Bolivia

S8

Crystal System: orthorombic
Colour: yellow, sulfur-yellow, brownish or greenish yellow, orange or white
Habitus:  crystals are typically dipyramidal. Also as granular to powdery aggregates
Lustre: resinous, greasy
Hardness: 1.5-2.5
Fracture: irregular/ uneven, conchoidal
Cleavage: imperfect on {001}, {110} and {111}.
Density: 2.07 g/cm3
Origin and geological occurrence: it is a sublimation product at volcanic fumaroles. It can be the results of sulfate reduction (in some cases biologically-mediated) in sedimentary rocks. In ore deposits, it can derive from the oxidation of sulfides.  

www.mindat.org

Smorf link


Samples:

1.4 s191 ZOLFO

1.4  Sulfur
 Dipyramidal crystals with aragonite. Sicily.

#sulfides      

1.5 SULPHUR A

1.5 Sulfur
Fractured crystal with conchoidal fracture

#sulfides   

P5 ZOLFO

1.9 Native Sulfur
Coarse-grained aggregate

#native elements