Sulfur

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Mineral class: Native Element
Composition: Sulfur, S
Hardness: 1.5 to 2.5
Luster: Greasy
Color: Bright yellow
Streak: Pale yellow
Cleavage: Poor
Crystal form: Orthorhombic, sometimes needle-shaped crystals.
Environment: Sedimentary (evaporite); bacterial action on gypsum.
Uses: Sulfur is used in making sulfuric acid, explosives, fungicides, fertilizers, and the vulcanization of rubber.
Comments: May be scratched by fingernail. It is trimorphous, fuses easily, and is a poor heat conductor, but can be charged with static electricity. Sulfur burns with a blue flame. [sulfur.jpg]

Mineral class:	Native Element
Composition:	Sulfur, S
Hardness:	1.5 to 2.5
Luster:	Greasy
Color:	Bright yellow
Streak:	Pale yellow
Cleavage:	Poor
Crystal form:	Orthorhombic, sometimes needle-shaped crystals.
Environment:	Sedimentary (evaporite); bacterial action on gypsum.
Uses:	Sulfur is used in making sulfuric acid, explosives, fungicides, fertilizers, and the vulcanization of rubber.
Comments:	May be scratched by fingernail. It is trimorphous, fuses easily, and is a poor heat conductor, but can be charged with static electricity. Sulfur burns with a blue flame.