This necklace features a fossilized ammonite paired with polished black onyx, set in sterling silver. The ammonite is a spiral-shaped marine fossil, while black onyx is a variety of chalcedony, a microcrystalline form of quartz, known for its smooth, opaque black appearance.
Details:
-
Material: Fossilized ammonite, natural black onyx, and sterling silver
-
Appearance: Spiral ammonite fossil complemented by deep black onyx, polished for a sleek finish
-
Formation: Ammonites formed in marine environments during the Mesozoic era; black onyx forms as layered chalcedony through silica deposition in volcanic or sedimentary rock cavities
-
Physical Properties: Onyx hardness ~6.5–7; ammonite fossil varies depending on mineralization
-
Educational Value: Combines paleontology and mineralogy, illustrating fossil preservation and quartz formation processes
This sterling silver ammonite and black onyx necklace blends ancient marine life with natural mineral science, offering both aesthetic appeal and educational value.
