Botswana Agate 14-25mm Nugget Top Drill - 15-16 Inch R0048 a clam found along the

a clam found along the New England coast

Sardonyx has a Sard base

golden tan

The shell is often found naturally polished with a green or brown spiral on one side and a white "eye" on the other

Botswana Agate 14-25mm Nugget Top Drill - 15-16 Inch R0048 a clam found along theBotswana Agate displays highly defined parallel banding, usually in white on hues of brown, gray, pink, tan, apricot and purplish red. Botswana Agate was formed nearly 187 million years ago by lava flowing in waves from long faults in the earth. This lava rolled across the landscape, depositing layer upon layer of Quartz silicate to create the banding and patterns now prized in Botswana Agate.