Black Septaria all polished Nodule
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Sizes: H = 23.0 cm W = 16.0 cm D = 9.5 cm Weight: 5.15 kg.
This large display piece is carved from a fossilzed Septarian nodule. The black parts are Aragonite. The grayish brown parts are Limestone. Formed 50~70 million years ago. From Madagascar.
*as shown