Bellecombe, Châtillon, Aosta Valley, Italy

Ca₂(Al₂Fe³⁺)(Si₂O₇)(SiO₄)O(OH)

Crystal System: monoclinic
Colour: yellowish-green, green, brownish-green or black
Habitus: prismatic
Hardness: 6
Fracture: irregular/uneven
Density: 3.43 g/cm³
Origin and geological occurrence: epidote is a mineral (belonging to the epidote supergroup) typical of several facies of regionally metamorphosed rocks and in contact metamorphism (e.g., in marbles). It occurs also in some contaminated felsic magmatic rocks. It can be the product of hydrothermal alteration of plagioclase.

www.mindat.org
Smorf link

Samples:

	9B.1 Epidote   Fine-grain massive epidote.  #neso soro silicates
	9B.2 Epidote  Greenish mm-sized crystals of epidote with white albite. #neso soro silicates