Ancient Banded Iron Stromatolites from Montana

Stromatolites - Polished Stromatolite Banded Iron Deposit

Geological Time: Mesoarchaen, ~ 3.0 to 3.3 Billion Years Old

Size: Stromatolite fossil is 165 mm by 105 (maximum)

Fossil Site: Ruby Mountains, Christensen Ranch, Dillion, Montana

Code: DS17060

Price: $110.00


Domal Mesoproterozoic Stromatolite Section from MontanaDescription: This banded iron is metasediment (sediment that has undergone metamorphism) and has a high content of magnetite (Fe3O4), making it a natural magnet, also resulting in the midnight black coloration. Minute crystalline forms of other mineral-based compounds are also present; Whether the sediment was of bioorganic origin (stromatolite) is indeterminable, but likely. This one is one of the oldest known at 3.0-3.3 BILLION years of age.

The specimen has been hand-polished to a glassine finish on one side with fine carbide and diamond abrasive, a very labor-intensive job

Stromatolites have persisted to the modern day in such places as Shark Bay, Australia where they continue their billions of years old lifestyle. While this piece would make a fine present for any natural history buff, anyone who appreciates art would also be glad to get thus wonderful specimen as a gift.

Fossils for Sale

click stromatolites pictures to enlarge

Domal Mesoproterozoic Stromatolite Section from Montana

Fossil Mall Navigation:
l Home l Fossils for Sale Map l Museum and Rare Fossils l How to Buy Fossils l

Navigate by Fossil Category:
l Trilobites
l Ammonites l Fish Fossils l Invertebrate Fossils l
l Crinoids and Echinoderms l Insect Fossils l Dinosaur and Reptile Fossils l
l Cambrian Explosion Fossils l Plant Fossils l Stromatolites l
l Vertebrate Fossils l Fossil Amber l Trace & Ichnofossils l

l Fossils and Paleotological Science Information l