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Abelsonite: Ni++C31H32N4
Comments: Purplish red crystal fragment of abelsonite. Location: Green River formation, Uintah County, Utah, USA. Scale: Crystal size 1.8 mm. © Thomas Witzke / Abraxas-Verlag
Comments: Purple platy abelsonite crystals embedded in drill core of the Green River Formation (Type Specimen ?). Location: Green River Formation, Utah, USA. Scale: See Image. © Rruff Database
Comments: Abelsonite (A) grain associated with authigenitc orthoclase (O) and a micaceous mineral (M). (AmMin, v63:930). Location: Wosco sample (Sec 36 T9S R20E) (Depth 2508.2 - 2508.15). Drill cores in or near the Mahogany Zone oil shale of the Green River Formation in Uintah County, Utah, USA. Scale: Magnification 800 X. © American Mineralogist