Anglesite

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Anglesite gets its name from a deposit locality: Anglesey, an island in Wales. Anglesite forms several types of crystal habits: tabular, prismatic, pseudorhombohedral, or pyramidal. They resemble those of barite and celestite. Prized by collectors for its strong dispersion, anglesite is often colorless to white, grayish, yellow, green or blue.

Anglesite Polished
Anglesite Classification
Common Name Anglesite
Species Anglesite
Anglesite Optical Properties
Transparency Transparent - Translucent
Dispersion Strength: Moderate Fire Value: 0.044
Refractive Index Over The Limit 1.878-1.895
Birefringence 0.017
Optic Character Biaxial
Optic Sign Positive
Polariscope Reaction Doubly Refractive (DR)
Fluorescence SWUV: Inert to weak yellow
LWUV: Inert
Pleochroism None
Anglesite Characteristic Physical Properties
Hardness 3-3.5
Streak White
Specific Gravity 6.300-6.390
Toughness Poor
Luster Adamantine, Resinous
Fracture Conchoidal
Cleavage Good, in two directions, poor, in one direction
Anglesite Chemistry & Crystallography
Chemical Name lead sulfate
Chemical Formula PbSO4
Crystal System Orthorhombic
Chemistry Classification Sulfate

Anglesite Colors

  • Blue Anglesite Blue
  • Yellow Anglesite Yellow
  • White Anglesite White
  • Colorless Anglesite Colorless

Countries of Origin

Morocco

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Tim Matthews

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Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.