Epidot
$Ca_2(Fe,Al)_3Si_2O_7SiO_4O(OH)$
Family
sorosilicate
Crystal system
monoclinic
Color
pistace green, dark green to black, pink, grey, yellow, colorless
Streak color
white or greyish
Cleavage
2 cleavages (1 perfect, 1 mediocre)
Hardness
6 to 7
Density
3,3 to 3.5
Explanations: →
Here
List of minerals: →
Here