|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Sweden > Perovskite var. Knopite
|Perovskite var. Knopite
|Langorsholmen, Alno Island, Sundsvall, Sweden (Type Locality for Knopite)
|Several crystals of black, cerium-rich perovskite, variety Knopite (from the type locality where this obsolete mineral was first discovered and described).
|For reference only
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