Common Forms/Occurrences: Found near hot springs and volcanic regions Useful Identification Test: Identifiable odour when mixed with water (resembles rotton eggs) Chemical formula: S Crystal System: Transparent to translucent crystals or earthy masses Colour: Bright yellow Streak: Pale yellow Lustre: Nonmetallic (NM); Greasy to earthy Cleavage: Poor or absent Fracture: Uneven; Brittle Hardness: 1.5 - 2.5 Hardness Search: one; two Specific Gravity: 2.1
