Sulfur

Crystal type:

α-form: orthorhombic crystal of cyclic S₈ [6].
β-form: monoclinic crystal of cyclic S₈. Stable between 94.8 and 120 °C [6].
γ-form: monoclinic crystal of cyclic S₈ [6].
Polymerized form: amorphous sulfur with a molecular weight around 200,000 [6].