Jane said poisonous heavy stone

Toxic stone is another major mineral containing mineral in addition to barite (BaSO4). It has the characteristics of high specific gravity, low hardness, absorption of X-rays and γ-rays, and is widely used in oil and gas drilling, chemical industry, light industry, metallurgy, building materials, medicine and other industrial sectors, especially in the manufacture of chemical products.

Category: Carbonates, foaming in acid

Chemical composition: BaCO3

Crystal system: Orthorhombic system 2 / m2 / m2 / m, the crystal is usually (110) as a twin plane, in the form of three single crystals, forming a pseudo-hexagonal double-cone surface, often on the cone Deep parallel stripes forming a concave corner

Hardness: 3.5

Water soluble: difficult

Fracture: Staggered (Uneven)

Streak: white

Common types: grape-like, spherical, columnar, granular, crystal is usually double-sided crystal

Common gloss: glass luster, broken grease luster

Common colors: colorless, gray, white

Common weight: 4.31

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