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Comments: Black to greenish black balls of radiating Ferrosaponite crystals on white calcite.
Location: Levoberezhye Icelandspar deposit, Nizhuyaya Tunguska river, Evenkiya, Siberia, Russia.
Scale: Not Given.
© Diederik Visser
Comments: Holotype specimens of earthy ferrosaponite.
Location: Russia, Eastern-Siberian Region, Krasnoyarsk Territory, Evenkia, Levoberezhye Iceland Spar Deposit.
Scale: FOV 6 cm.
© German Type Specimen Catalogue