Treasures of the Sea - Shell Collections - Pack of 10 Assorted Specimens of Murex Seashells - NEW425 Packaging Calcium sodium aluminum silicate Hardness:

Calcium sodium aluminum silicate Hardness: 6-6

but much more brittle

Metaphysical Properties Aragonite is a sought-after stone because of its metaphysical properties

With its simple wash care instructions

Treasures of the Sea - Shell Collections - Pack of 10 Assorted Specimens of Murex Seashells - NEW425 Packaging Calcium sodium aluminum silicate Hardness:Treasures of the Sea Shell Collections Pack of 10 Assorted Specimens of the Murex species of Seashells. One seashell is always a surprise! Each collection may differ from picture but the value is the same or greater. Start your seashell collection today! Comes with a list of seashell names so you can research and ID them, this is the first step as a shell collector.