Difference between revisions of "Halite"
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The mineral '''Halite''' is common rock salt. | The mineral '''Halite''' is common rock salt. | ||
| − | {{Mineral | name=Halite | | + | {{Mineral |
| + | | name=Halite | ||
| + | | image=Halite.jpg | ||
| + | | cdesc=Sodium Chloride | ||
| + | | formula=NaCl | ||
| + | | birefringence= | ||
| + | | colors=Colorless, or tints of gray, yellow, red, blue | ||
| + | | chabit=Usually a simple [[cube]], rarely [[octahedral]]; faces are commonly cavernous and develop into [[hopper]] crystals | ||
| + | | csystem=[[Isometric system|Isometric]] | ||
| + | | cleavage= Perfect, three directions at 90° | ||
| + | | dispersion= | ||
| + | | fracture=[[Conchoidal]], [[Brittle]] | ||
| + | | hardness=2-2 1/2 | ||
| + | | luminescence= | ||
| + | | luster=[[Vitreous]] | | ||
| + | | nameorigin=From the [[Greek]] ''hals'', meaning ''salt'' | ||
| + | | optics= | ||
| + | | pleochroism= | ||
| + | | sgravity=2.16 | ||
| + | | spectral= | ||
| + | | streak=White | ||
| + | }} | ||
| + | |||
==Sources== | ==Sources== | ||
*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987) | *Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987) | ||
| − | < | + | |
| − | + | ==Gallery== | |
| + | <gallery> | ||
| + | Image:Halite crystals.jpg|'''Halite crystals''' | ||
| + | Image:Halite1.jpg|'''Halite crystals''' | ||
| + | </gallery> | ||
Latest revision as of 05:14, December 22, 2008
The mineral Halite is common rock salt.
| Halite | |
|---|---|
| |
| Chemical name | Sodium Chloride |
| Chemical formula | NaCl |
| Identification | |
| Colors | Colorless, or tints of gray, yellow, red, blue |
| Crystal habit | Usually a simple cube, rarely octahedral; faces are commonly cavernous and develop into hopper crystals |
| Crystal system | Isometric |
| Cleavage | Perfect, three directions at 90° |
| Fracture | Conchoidal, Brittle |
| Hardness | 2-2 1/2 |
| Luster | Vitreous |
| Name origin | From the Greek hals, meaning salt |
| Specific gravity | 2.16 |
| Streak | White |
Sources
- Chesterman, Charles W. The Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf: New York (1987)
Gallery
Halite crystals
Halite crystals
