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Nyerereite Gregoryite Image |
Mineral: | Nyerereite: Na2Ca(CO3)2 Gregoryite: (Na2,K2,Ca)CO3 | |||||
Comments: | Sodium (nyereteite) and potassium (gregoryite) carbonates, not stable in normal atmosphere, collected molten from the volcano and maintained in inert argon atmosphere. | |||||
Location: | Ol Doinyo Lengai Vulkan, Maasai Steppe, East Africa Rift Valley, Tanzania. See Link. | |||||
Scale: | Rock size 2 cm. | |||||
Copyright: | © Richard Dale / Dale Minerals | |||||
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