Stone(s): Septarian
Color: gray, brown, yellow
Dimensions: approx. 9 cm x 7-8 cm
Approximate weight: 240 to 340 g
Photos are non-contractual. Each septarian nodule features a unique pattern and a varying amount of yellow calcite crystallization. The images provided are a representative example of the pieces available.
Sold individually
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, varying according to the proportion of minerals
Origin: Madagascar
Care instructions: Use a soft cloth and lukewarm water for cleaning. Handle with care to avoid scratches or impacts, as some minerals like calcite can be sensitive.






























