Paralaurionite
A variety of Minerals
What is Paralaurionite?
Paralaurionite is a colorless mineral consisting of a basic lead chloride PbCl(OH) that is dimorphous with laurionite. It is a member of the matlockite group. The name is derived from para-, the Greek for "near", and laurionite, because of its polymorphic relationship to it. Bright, yellow tips of thorikosite can form on paralaurionite crystals and paralaurionite may also be intergrown with mendipite.
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Key Characteristics
Formation of Paralaurionite
It was first described in 1899 for an occurrence in slag in Laurium, Attica, Greece. In 1952 an occurrences of it was reported from the Mammoth Mine, Arizona. It occurs in lead bearing slag which has been exposed to seawater. It also occurs in polymetallic ore deposits. It occurs associated with laurionite, penfieldite, fiedlerite, phosgenite in slag deposits; and with leadhillite, matlockite, cerussite, hydrocerussite, diaboleite and wherryite in the Mammoth mine location.
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Quick Facts
Physical Properties
- Color
- Colourless, white, yellow, violet, green
- Hardness (Mohs)
- 3
- Density
- 6.28 g/cm³
Chemical Properties
- Chemical Formula
- PbCl(OH)
- Elements
- Cl, H, O, Pb
Also Known As
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