8-3/4" Brazilian Agate Bookends Optical Calcite please contact us via email

please contact us via email or phone to inquire

as the climates changed

and iron plus vanadium results in orange stones

but by the Early Pleistocene this lineage had reduced this to four

8-3/4" Brazilian Agate Bookends Optical Calcite please contact us via emailBrazilian Agates are found in the southern states in basalt formations from 4 to 40 feet deep and at elevations of about 2500 to 3500 feet above sea level. Agate is a variety of silica composed of alternating layers of various colored chert or quartz. Agates were named after the Acate River in Sicily where the stones were originally found. The most accepted theory as to how these Agates formed is that as lava cooled, gas and steam accumulated to form