Item Description:

​Type: Silicified Stromatolite (Ancient Microbial Mat Fossil)

Locality: Meramec & Big River Confluence, Missouri, USA

Dimensions: Approx. 7" x 6.5" x 5"

Weight: 4 lbs 6.2 oz

​About This Specimen:

This is a world-class display piece of Missouri "Lace Agate," which is actually a 500-million-year-old silicified stromatolite fossil.

​Unlike most Missouri agate which is found as solid, rounded nodules, this specimen features exceptional high-relief lamination. The "wavy" lines represent the original growth layers of ancient algae mats. Natural river action has "etched" the specimen, removing softer matrix and leaving the hard silica "waves" standing out in a beautiful 3D skeletal architecture.

​Key Features:

​Druzy Vugs: Multiple internal cavities (vugs) lined with sparkling, water-clear,  silvery gray, golden  bronze, whites and tan druzy quartz crystals

​Coloration: Rich palette of creamy tan, root-beer brown, and hematite reds.

​Fossil Detail: Outstanding example of Precambrian/Paleozoic life from the Ozark Shelf.

​A must-have for collectors of Missouri minerals, fossil enthusiasts, or anyone looking for a unique, large-scale natural conversation piece.