AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Tanzania > Nyerereite and Gregoryite

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Nyerereite and Gregoryite from Oldoinyo Lengai volcano, Maasai Steppe, East Africa Rift Valley, Tanzania (Type Locality for Nyerereite and Gregoryite)

 
Nyerereite and Gregoryite from Oldoinyo Lengai volcano, Maasai Steppe, East Africa Rift Valley, Tanzania (Type Locality for Nyerereite and Gregoryite)

DESCRIPTION:No. 29684
Mineral:Nyerereite and Gregoryite
Locality:Oldoinyo Lengai volcano, Maasai Steppe, East Africa Rift Valley, Tanzania (Type Locality for Nyerereite and Gregoryite)
Description:Glass vial with volcanic lava with several small cavities lined with nyerereite and gregoryite crystals. These minerals were extracted under sealed conditions and the vial was sealed, with argon gas added, to prevent alteration.
Overall Size:18x12x10 mm
Crystals:.5 mm
Status: Sold - Posted here for reference only
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