Black Opal 4mm Round Faceted - 15-16 Inch Stone Type_Seraphinite Orthoceras was an ancient mollusk

Orthoceras was an ancient mollusk that lived over 370 million years ago

It occurs with wave-like bands of charcoal gray

it is believed to have been worn Cicero

denoting a strong land/water connection

red and gray in swirling circular patterns

Black Opal 4mm Round Faceted - 15-16 Inch Stone Type_Seraphinite Orthoceras was an ancient molluskBlack Opal is a naturally occurring variety of precious opal mined in Australia. this opal variety is characterized by their dark base tone. It is mined under extremely harsh conditions and the high grade specimens are more rare than diamonds. Australian Aboriginal tribes referred to Black Opal as "Fire of the Desert."