Black Ammonite Pair 12" x 12" x 2" Calcite Blue lace agate is a

Blue lace agate is a type of chalcedony

primarily composed of chalcedony with microgranular quartz

Millerite is said to be quite helpful in stimulating deep meditative states

Each crystal is attached with a silver hook

coming in at a 2 on the Mohs scale for hardness

Black Ammonite Pair 12" x 12" x 2" Calcite Blue lace agate is aBeautiful pair of natural Black Ammonite fossils with pyrite embedded within the spiral of each ammonite. Individually each ammonite fossil measures 12" x 12" x 2". Ammonites are extinct relatives of sea creatures such as the modern Nautilus from Palau. Ammonites lived during the Jurassic and Cretaceous periods. Together, these represent a time interval of about 140 million years. The Black coloration is due to changes to the rock formation within the