Banded Ironstone 1bbdc40285dbc0b56eda99b4881b1e6b and the Neolithic

and the Neolithic

Chrysoberyl is formed from the same elements that Alexandrite and Cymophane (Cat's Eye) are comprised of

Dimensions: Average ~ 15 mm + / - each

alongside juveniles

Keichousaurus (meaning "Kweichow lizard") is an extinct genus of pachypleurosaurian marine reptile from the Chialingchiang and Falang Formations of China with two known species attributed to the genus: K

Banded Ironstone 1bbdc40285dbc0b56eda99b4881b1e6b and the NeolithicBillions of years ago, Cyanobacteria, (Blue Green Algae) was the most abundant life form on our planet, forming in lakes, oceans, on rocks or almost anywhere there was moisture. These bacteria are credited for the creation of most of the Earth's oxygen. Over long periods of time, some of these bacteria worked its way through sand and other sediments, binding it together, dying off and then eventually transforming it into stone. That stone is known as