Paralaurionite
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Paralaurionite is a colorless mineral consisting of a basic lead chloride PbCl that is dimorphous with laurionite. It is a member of the matlockite group. The name is derived from para-, the Greek for
Platey clear paralaurionite crystals from slag in the Thorikos area, Lavrion, Attica, Greece
Unusually large crystals of Paralaurionite, Touissit, Oujda-Angad Province, Morocco. Size: 6 x 5.5 x 5 cm.
Laurionite
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Laurionite is a lead halide mineral. It forms colorless to white crystals in the orthorhombic crystal system and is dimorphous with paralaurionite, both members of the matlockite group.
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…
Laurionite crystals in a vug from the Laurium district of Greece