Cotunnite

Formula:  PbCl2

 

Origin of name:  For D. Cotugno (Cotunnius), Italian physician

 

Crystal system:  Orthorhombic

Crystal class:  2/m 2/m 2/m

Twinning:

Unit cell:

 

Colour:  Colourless, white, yellowish, greenish

Diaphaneity:  Transparent to translucent

Luster:  Adamantine

Habit:  Crystals often flattened, elongated; massive, granular

Hardness:  2.5

Specific gravity:  5.88

Cleavage:  1; {010} perfect

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments:  Soluble in water

 

Back to Alphabetical list Colour photos Thin sections SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra