Halite

NaCl

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Better known as rock salt, halite is the mineral form of sodium chloride (NaCl) and among the most familiar minerals to people everywhere. It crystallizes in the cubic system, typically as cubes or massive aggregates, with a vitreous luster, a white streak, perfect cubic cleavage, and a Mohs hardness of 2 to 2.5. Colors range from colorless and white to blue, orange, and pink, the pink varieties tinted by iron oxide impurities, and its specific gravity is 2.16. Halite forms thick evaporite deposits where seawater or saline lakes dry up, and it remains a fundamental industrial and dietary commodity. Its ready solubility in water and salty taste are diagnostic, alongside the perfect cubic cleavage.

Halite (sal-gema) é a forma mineral do cloreto de sódio. Forma extensos depósitos evaporíticos e é um dos minerais mais familiares para os humanos. A halita rosa de certos depósitos contém impurezas de óxido de ferro.

Sistema Cristalino Cubic (Isometric)
Classe Mineral 03 Halides
Dureza Mohs 2.0-2.5
Gravidade Específica 2.16
Cor Colorless, white, blue, orange, pink
Brilho Vitreous
Traço White
Clivagem Perfect cubic {001}
Fratura Conchoidal
Transparência Transparent
Hábito Cristalino Cubic, massive

Dureza Mohs

Mohs Hardness: 2,0 – 2,5
1 Soft10 Hard
Halite has a Mohs hardness of 2–2.5 on the 1–10 mineral hardness scale.
Dureza Mohs Reference Mineral
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Sistema Cristalino

Cubic (Isometric)
Halite crystallizes in the Cubic (Isometric) crystal system.
Propriedade Value
Sistema Cristalino Cubic (Isometric)
Axial Relationships a = b = c, α = β = γ = 90°

Frequently Asked Questions

What is the hardness of Halite?
Halite has a Mohs hardness of 2.0-2.5.
What crystal system does Halite belong to?
Halite crystallizes in the Cubic (Isometric) crystal system.
What color is Halite?
Halite is typically Colorless, white, blue, orange, pink.
What type of luster does Halite have?
Halite exhibits a Vitreous luster.
What is the chemical formula of Halite?
The chemical formula of Halite is NaCl.