Septarian Slab Madagascar 7.48 x 6.69 x 0.50 inches...

Septarian Slab Madagascar 7.48 x 6.69 x 0.50 inches (19.00 x 17.00 x 1.26 cm) Bright yellow Calcite dominates this captivating Septarian slab at first glance before the stunning pattern created by the brown Aragonite commands a second look. This "mud" concretion has had its hollow cavity filled with sediment, Calcite, and Aragonite over millions of years to create this captivating slab that has been expertly cut and polished. This is a great piece of lapidary art that is in fantastic condition. HID09710052018 © 2024 Heritage Auctions | All Rights Reserved