Selected Minerals – Today: Anglesite

Anglesite

• Named after the type locality (a locality, where a a particuliar mineral was first found/identified), which is here the Isle of Anglesey (Wales)
• Occurs as an oxidation product of primary lead sulfide (PbS, Galena) ore
• Formula: PbSO₄
• Space group: Pnma (No. 62)
• Crystal system: orthorhombic
• Crystal class: mmm
• Lattice parameters: a = 8.48 Å, b = 5.40 Å, c = 6.96, α = β = γ = 90°

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Picture: Rob Lavinsky, iRocks.com – CC BY-SA 3.0

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

SO₄ tetrahedra (yellow), PbO₈ irregular polyhedra (gray)

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