Sciencemall-usa.com is your online science novelty gift store for the adult science enthusiast. We are open 360 days a year and based in the Midwest state of Iowa, USA. Our mission is to provide for sale science gifts, novelty geek gifts, rare scientific rock and mineral matrix specimens, meteorites, tektites, Libyan Desert Glass, fulgurite lightning sand, Lichtenberg figures, school rock collections, manganese nodules, periodic table of the elements, fossils and artifacts. We also sell stromatolites (earth's earliest life), science collectibles, shatter cones, banded iron formation, Greenstone belt BIF, KT-boundary, radioactive minerals and materials, science room art decor posters, prints, science displays, science jewelry pendant necklace earrings, originally crafted meteorite jewelry, and more.

Banded Iron Formation BIF Greenstone Belt

Banded Iron Formation BIF for Sale and Greenstone Belt Specimens

The fascinating biochemical origin of Banded Iron Formation rocks make them important specimens in serious geological collections.

In earth's early history the young oceans contained reduced iron that had been washed into them over time from continents. This iron combined with the nascent oxygen produced by photosynthetic bacteria then settled on the ocean floors. The bacterial cycle of growth - bloom and then bust - of seasonal feedback oscillations in the oceans formed a complex feedback loop of unique geological layering, now known as banded iron formations.