Yet another mineral – Today: Baryte

Baryte

  • named after the greek word for heavy (the density is relatively high
    with 4.5 g/cm3)
  • Formula: BaSO4
  • Space group: Pnma (No. 62)
  • Crystal system: orthorhombic
  • Crystal class: mmm
  • Lattice parameters: a = 8.88 Å, b = 5.46 Å, c = 7.16 Å, α = β = γ =  90°

6158m-barite2

Picture: Carlesmillan – CC BY-SA 3.0


Crystal structure (click on the picture to download the VESTA file):

baryte

slightly distorted SO42- tetrahedra (yellow), Ba2+ ions (green), which are surrounded by 12 oxygen atoms

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