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ATHENA

MINERALOGY

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Mineral: DOBROVOLSKYITE
Name: Добровольскиит
Formula: Na4Ca(SO4)3
Crystal System: Rhombohedral (Trigonal)
IMA Number: 2019-106
References: MM 84 (2020), 355; EJM 32 (2020), 275; MM 85 (2021), 233; AM 106/12 (2021), 2029
Type Locality: Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik volcano, Kamchatka, Russia

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