Explanations:→
Here
Siderite
$FeCO_3$
Family
carbonates
Crystal system
hexagonal
Color
brown pâle to dark brown, grey
Streak color
white, sometimes tinged with yellow
Cleavage
1 perfect cleavage
Hardness
3,5 to 4
Density
4,0
Explanations: →
Here
List of minerals: →
Here