Gregoryite Mineral Gallery

Gregoryite Mineral Gallery
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Gregoryite Minerals

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Gregoryite Mineral Gallery With 2 Images

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Gregoryite: (Na2,K2,Ca)CO3  
Nyerereite: Na2Ca(CO3)2

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.
© Richard Dale / Dale Minerals

Gregoryite Image

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Gregoryite: (Na2,K2,Ca)CO3  
Nyerereite: Na2Ca(CO3)2

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.
© Richard Dale / Dale Minerals