Wild septarian egg 624g – 9cm

Stone(s): Wild septarian Color: black Dimensions: H 9cm x W 8.5cm – Base: approx. 3.5cm Approximate weight: 624g Stone size: polished egg Photos are contractual. Classification: no classification. Septarian is a sediment concretion formed by a complex mixture of minerals (silica, calcite, etc.). It is not an officially recognized mineral species, but rather an aggregate of various minerals. Mohs hardness: Intermediate hardness. Composed of various minerals: on the Mohs hardness scale, chalcedony is 7 and calcite is 3. Density: 2.5 to 2.7, variable depending on the proportion of minerals Origin: Madagascar, United States, Morocco, France, England, New Zealand Care instructions: use a soft cloth and warm water for cleaning. Handle with care to avoid scratches or impacts, as some minerals like calcite can be sensitive.