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MADAGASCAR
細節
A SPLIT AMMONITE
MADAGASCAR
A Cleoniceras sp. from the Early Cretaceous (approx. 135 Mya), split and polished to reveal inner chambers of caramel-brown calcite, the reverse side showing regions of purple iridescence.
9in. (23cm.) diam. (2)
MADAGASCAR
A Cleoniceras sp. from the Early Cretaceous (approx. 135 Mya), split and polished to reveal inner chambers of caramel-brown calcite, the reverse side showing regions of purple iridescence.
9in. (23cm.) diam. (2)