|
Chemical Composition: NaCl
Group: Halite
System: Isometric
Family: Phosphates
Hardness: 2.5
|
- Cubic crystals, sometimes distorted
- Groupings of divergent crystals
- Perfect cubic cleavage
- Nonmetallic; vitreous luster
- Other colours: white, yellow, red, brown, black
- Very light, transparent to translucent
- Dissolves readily in water
- Excellent conductor of heat, fuses easily
- Moist to the touch
- Pleasant salty touch
- Vital ingredient in human and animal diet
- White streak
- Very stable when pure
- Important in chemical industry for the preparation of
soda, hydrochloric acid and sodium
- By-products: bromine, chlorine, iodine, magnesium,
potassium, etc...
- Specific gravity 2.1 to 2.2
- Very common
|
