Black Septarian Egg 6.3cm

Black Septarian Egg, crystal for sale from Madagascar. This splendid 6.3cm tall Black Septarian Egg has an open cavity crystal chamber displaying rich black calcite crystal. It dates from the Cretaceous period, it is a fossilised mud ball which over millions of years cracked and then dried out, Calcite then leaked into the cracks to form the distinctive patterns that are displayed in this egg. ideal for the collector or healer or as an unusual display piece. Comes with disply stand.