Back to: Nature online

Earth lab datasite

Epidote
Silicate pistacite
hydrous calcium iron aluminosilicate
Ca2 (Al Fe)3 (Si O4)3 OH
Scale bar = 1 centimetre
cleavage: Perfect
crystal system: Monoclinic
hardness 6.0 - 7.0
relative density 3.3 - 3.5
Willow Craig, Keswick, Cumberland
26 F 7