Barite & Cerussite 964c4db65f9489e6f6012b3ec2a0cea1 They began their existence during

They began their existence during the early Cambrian time period (520 mya)

a fossilized alga and they are the oldest fossils on our planet at some 3 billion years old

they used their long tusks for both scraping off ice and snow that covered vegetation and for defending themselves

the other being ruby

and the United States

Barite & Cerussite 964c4db65f9489e6f6012b3ec2a0cea1 They began their existence duringCerussite, named from the latin word cerussa (white), is a lead carbonate mineral and a primary source of lead ore secondary mineral of lead. Another name for it is white lead ore. Collectable specimens are prized for their v shaped twin crystal formation and their snowflake like blades. Barite is a soft mineral that is hard to find in undamaged condition. There are several locations to find barite, but some of the best crystals can be found in