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Cerussite

Cerussite

By Tim Matthews, JD, FGA, GG, DGA,
CEO and President of JTV (retired)
Published: June 2014
Modified: March 2022
Cerussite Polished Cerussite Rough
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Table of Contents
  • General Information
  • Cerussite Colors
  • Alternate Names
  • Countries of Origin
  • History
  • Care

Cerussite is a lead carbonate mineral in the aragonite group. The mineral gets its name from the Latin world cerussa meaning “white lead”. Specimens are prized by mineral collectors due to its V-shaped twinned forms and intergrown blades that look like snowflakes. Gemstones are rare because cerussite is soft and troublesome to facet. The stones have spectacular dispersion and are heavy due to the high specific gravity of the mineral. Some fibrous material has been fashioned into cat’s-eye cabochons.

General Information

  • Classification
  • Optical Properties
  • Characteristic Physical Properties
  • Chemistry & Crystallography
Common Name
Cerussite
Species
Cerussite
Transparency
Transparent - Opaque
Dispersion
Strength: Strong Fire Value: 0.055
Refractive Index
Over The Limit 1.804-2.079
Birefringence
0.274
Optic Character
Biaxial
Optic Sign
Negative
Fluorescence
SWUV: Inert to pale blue or green
LWUV: Inert to bright orange but can be yellow, pink, green and bluish
Pleochroism
None
Hardness
3-3.5
Streak
White
Specific Gravity
6.460-6.570
Toughness
Poor
Luster
Adamantine
Stability
Poor
Fracture
Conchoidal, Uneven
Cleavage
Good, in two directions, Poor, in two directions
Chemical Name
lead carbonate
Chemical Formula
PbCO3
Crystal System
Orthorhombic
Chemistry Classification
Carbonate

Cerussite Colors

  • Black Cerussite
    Black
  • Blue Cerussite
    Blue
  • Brown Cerussite
    Brown
  • Colorless Cerussite
    Colorless
  • Gray Cerussite
    Gray
  • Green Cerussite
    Green
  • Red Cerussite
    Red
  • White Cerussite
    White
  • Yellow Cerussite
    Yellow

Alternate Names

White Lead Ore

Countries of Origin

Myanmar; Papua New Guinea; Angola; Sudan; Malaysia; Kazakhstan; Portugal; Bosnia And Herzegovina; Greece; Austria; Mongolia; Korea (the Republic of); Morocco; Unknown; Luxembourg; Brazil; Guatemala; Algeria; Iraq; Jersey; Slovenia; Chile; Ecuador; Argentina; Iran (Islamic Republic of); Hungary; Republic of Kosovo; Isle of Man; Japan; Ukraine; Zambia; Taiwan (Province of China); Congo; Bolivia (Plurinational State of); India; Lao People's Democratic Republic; New Zealand; Canada; Turkey; Belgium; Namibia; Finland; Italy; South Africa; Georgia; Peru; Turkmenistan; Germany; Yemen; Afghanistan; Eritrea; Russian Federation; Viet Nam; Czechia; United States of America; Egypt; Madagascar; Thailand; United Kingdom of Great Britain and Northern Ireland; Costa Rica; Saudi Arabia; Netherlands; Sweden; Pakistan; China; Ireland; Poland; Slovakia; Bulgaria; France; Nigeria; Serbia; Tunisia; Kyrgyzstan; Romania; Rwanda; Uzbekistan; Switzerland; Spain; Azerbaijan; Mauritania; Guernsey; Norway; Botswana; Swaziland; Congo (the Democratic Republic of the); Mexico; Zimbabwe; Australia; Greenland; Montenegro; Tajikistan; Indonesia

History

Named by Wilhelm Karl von Haidinger in 1845.

Care

Very soft gentle care, not suitable for jewelry. Cerussite has a high sensitivity to heat. This stone contains lead and special care needs to be used. Always wash your hands after handling and do not ingest. Cut stones using a liquid medium and use a mask so not to inhale dust.

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