List of Gemstones | Rare Minerals | Gem stones | Gems » sulfur http://www.all-gemstones.com www.all-gemstones.com    Thu, 06 May 2010 12:29:47 +0000 http://wordpress.org/?v=2.8.6 en hourly 1 Sulfur http://www.all-gemstones.com/sulfur http://www.all-gemstones.com/sulfur#comments Mon, 04 Jan 2010 10:43:19 +0000 admin http://www.all-gemstones.com/?p=1368 Refractive Index : 2.245 – 1.958 Optical Characteristic : DR, B+ Specific Gravity : 2.09 – 2.05 Formula : S8 Crystal System : Orthorhombic Variety/Species : All Species/Group : Sulfur Birefringence : 0.291 Dispersion : 0.155 Hardness : 1.5 to 2.5 Toughness : poor Ultrasonic : Never Steam : Never UV Long : Inert UV Short : Inert Pleochroism : None Strength : N/A
Pleochroism Colors : None Heat : sensitive Acids : sensitive Light : stable Polish Luster : Resinous to greasy Fracture : Uneven to conchoidal Fracture Luster : Clarity Type : N/A Tones : N/A Saturations : N/A Cause of Color : Enhancements : none Cleavage : Imperfect Color Range : Yellow, yellowish brown, yellowish gray, orange, brownish, grayish, reddish, greenish, orangy, whitish Transparency : Transparent to translucent Phenomena : None
Separations : Sulfur from- Identifying Characteristics and information
Cut for collectors only.

Sulfur is very soft and dissolves in water making it extremely difficult to cut.

It is also brittle.

White streak. Spectral Data
not diagnostic. Trade Names and Misnomers
Brimstone
Schwefel
Soufre
Sulfur
Sulphur ]]> http://www.all-gemstones.com/sulfur/feed 0