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Anglesite (Photo) [abbr. Ang ]

Year of discovery: 1832 (Parys Mountain mines, UK), 1894 (Japan)

Locality list: 70 localities of anglesite

• PbSO₄
• [Pb²⁺][SO₄]^2-

• Class: Baryte group
• Class: Sulfate
• Insoluble in: HCl, HNO₃
• Fluorescence: UV excitation (Orange)
• Formed by alteration of Galena: S => SO₄
• Substitution pseudomorph: Replaced by Cerussite.

• Pb => Ca: Anhydrite
• Pb => Ba: Baryte
• Pb => Sr: Celestine

• Color: Colorless-White
• Streak: Colorless
• Luster: Adamantine
• Diaphaneity: Transparent-Opaque

• Habit: Pointed prismatic, Tabular
• Striation: Parallel to elongation

• Cleavage: Good on {001} (1 plane), Distinct on {201} (1 plane), Indistinct on {010} (1 plane)
• Hardness: 2.5-3
• Density: 6.4

• System: Orthorhombic
• Group: mmm, Pnma
• Lattice: a=8.5, b=5.4, c=7.0

Etymology: Anglesey district, U.K.