Sphalerite
Although I could not find any references about it, Sphalerite occurs in
greensih gray Diopside from Bazhenovskoye mine.
In this specimen it is associated with a few (not visible on photo) grains of
Chalcopyrite.
Sphalerite is not uncommon in the Lovozero massif. This specimen comes from
Mt.Alluaiv. A brassy inclusion of some other
sulfide is visible.
Pale yellow grains of Sphalerite with possible tan Fedorovskite and gray
Sakhaite from a drill core of Solongo.
Sphalerite from Elbrusskiy mine, Caucasus.
[all photo's/collection Maurice de Graaf]
Sphalerite with Calcite, Quartz and Pyrite from Kolgutinskoye, Altai.
[photo/collection: Maurice de Graaf]
Nice brown, but small, Sphalerite crystals occur in the little known Dzhalankol
barite deposit in the Caucasus.
[photo/collection: Maurice de Graaf]