Diopside

'Lavrovite' green grainy vanadium bearing diopside from Slundyanka.

'Baikalite' is an iron rich variety of Diopside with Sludyanka as type locality. This sample comes from Quarry 2, 
near Sludyanka

Rockforming diopside in Kovdor occurs as near black, associated with lighter green Richterite
[all photo's / collection: Maurice de Graaf]