â›° Go with the flow: earthy curved Tiger Iron (Banded Iron Formations, or BIFs) raw specimen, from Australia. This is a spectacular unpolished specimen of a very unique type of rock, found in some of the oldest formations on the planet! Tiger iron is also known as jaspilite--it is found only in the Pilbara region of Australia. It is one specific type of banded iron formation. Banded iron formations (BIFs) are included in some of the oldest rock formations on earth--they have been dated to over 3,700 million years old. Most BIFs formed during the Proterozoic Era. It is generally believed that the bands formed as a result of photosynthesizing cyanobacteria, which originated in earth's primordial oceans. Structural and fascinating, with a totally organic appeal. â›° Locality: Pilbara region, Western Australia. 2.25" x 2.38" x 2.25", 351 g (12.4 oz)--$28 on PhenomenalGems.Etsy.com. #tigeriron #jaspilite #bandedironformations #bifs #australia #ancientearth #protozoic #primordial #earlylife #geology #paleontology #nature #mineralogy #rocks #minerals #rocksandminerals #earth #curved #structure #sculpture #artistic #collection #raw #unpolished #phenomenalgems #etsy #etsysellersofinstagram
