Back to: Nature online

Earth lab datasite

Matlockite
Halide in galena
lead fluorochloride
Pb F Cl
Scale bar = 1 centimetre
cleavage: perfect
crystal system: Tetragonal
hardness 2.5 - 3.0
relative density 7.1 - 7.2
near Matlock, Derbyshire
26 H 2