Definitions
from The Century Dictionary.
- noun An oxychlorid of lead occurring in prismatic crystals at Laurium (Laurion), Greece, and produced by the action of sea-water upon the ancient lead slags.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy An orthorhombic-dipyramidal
mineral containingchlorine ,hydrogen ,lead , andoxygen .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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They found the residue of a range of lead-based substances, including two lead chlorides: 'laurionite' (Pb (OH) Cl) and 'phosgenite' (Pb2Cl2CO2), which don't occur in nature.
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Chemical analysis of cosmetics samples found in Egyptians tombs and the reconstitution of ancient recipes as reported by Greco-Roman authors have shown that two non-natural lead chlorides (laurionite Pb (OH) Cl and phosgenite Pb2Cl2CO3) were purposely synthesized and were used as fine powders in makeup and eye lotions.
Egyptology News Andie 2010
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The research was carried out using a tiny electrode, the 10th of the size of a hair, to look at the effect of a lead chloride synthesised by the Egyptians -- laurionite -- on a single cell.
PhysOrg.com - latest science and technology news stories 2010
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