Oil shale which formed in deltaic environments in the Middle and Late Carboniferous and Jurassic are mostly paragenetically
related to coal.
, Re, Mo and U show a close relation to each other.
, viitaniemiite precedes cryolite, fluorite and pyrite.
Bertrandite forms at the expense of beryl and is paragenetically
the last beryllium-bearing species to crystallize.
Fluellite is paragenetically
late and may occur directly upon lustrous quartz crystals, on botryoidal white to green strengite/variscite, or associated with white to yellow wavellite spherules.
The Dal'negorsk boron deposits appear to be paragenetically
related to two post-orogenic magmatic complexes, the Sikhote Alin and the Dolinna.
Calcite crystals are also widespread throughout the mine in smaller rugs (1 to 2 meters across) apparently paragenetically
unrelated to the larger "caves." A wide variation in morphology has been noted for calcite from these pockets, and some truly superb clusters have been seen.
, the lead oxychlorides mainly occur associated with native elements (As, Pb, Cu), hydrocerussite, minor arsenates and arsenites, with calcite and barite as ubiquitous companions.