Barite

BaSO4

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Unusually dense for a non-metallic mineral, barite is a barium sulfate (BaSO4) that ranks as the heaviest of the common light-colored minerals, with a specific gravity between 4.30 and 4.60. It crystallizes in the orthorhombic system, forming tabular, prismatic, or massive habits, and displays a vitreous luster, a white streak, and perfect {001} cleavage. Colors span colorless, white, blue, yellow, and brown, and the hardness is a modest 3 to 3.5. Barite is the reference mineral for barium and finds its primary industrial use as a weighting agent in the drilling muds employed during oil and gas exploration. Its two good cleavage directions and considerable heft in the hand are practical clues to identification.

Barite is notable for its high specific gravity (the heaviest of the common non-metallic minerals) and is the reference mineral for barium. It is primarily used as a weighting agent in drilling muds for oil and gas exploration.

晶系 Orthorhombic
矿物分类 07 Sulfates, Chromates, Molybdates, and Tungstates
莫氏硬度 3.0-3.5
比重 4.30-4.60
颜色 Colorless, white, blue, yellow, brown
光泽 Vitreous
条痕色 White
解理 Perfect {001}, {210}
断口 Uneven
透明度 Transparent
晶体习性 Tabular, prismatic, massive

莫氏硬度

Mohs Hardness: 3.0 – 3.5
1 Soft10 Hard
Barite has a Mohs hardness of 3–3.5 on the 1–10 mineral hardness scale.
莫氏硬度 Reference Mineral
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

晶系

Orthorhombic
Barite crystallizes in the Orthorhombic crystal system.
特性 Value
晶系 Orthorhombic
Axial Relationships a ≠ b ≠ c, α = β = γ = 90°

Frequently Asked Questions

What is the hardness of Barite?
Barite has a Mohs hardness of 3.0-3.5.
What crystal system does Barite belong to?
Barite crystallizes in the Orthorhombic crystal system.
What color is Barite?
Barite is typically Colorless, white, blue, yellow, brown.
What type of luster does Barite have?
Barite exhibits a Vitreous luster.
What is the chemical formula of Barite?
The chemical formula of Barite is BaSO4.